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Kiwiland Education

Multi-Step Equations Both Sides | Mystery Detective Worksheets | Grades 7–10 | Zombie

$4.00 USD

Multi-step equation activities, solving equations with variables on both sides worksheets, and one-variable linear equation practice for 7th grade, 8th grade, 9th grade, and 10th grade are all included in this zombie Mini Mystery Detective pack of math worksheets. These activities have NO brackets included. Students solve for x, match each solution to a suspect, and cross names off until only the culprit is left standing across five detective cases — perfect for math centers, morning work, early finishers, homework, substitute and relief days, indoor recess, spiral review, and test prep. Completely no prep — just print and go.

What's Inside

  • Solving multi-step linear equations with the variable on both sides of the equals sign: 7x+2=8x-42, 4x-9=3x+33, x+15=4x-90
  • Collecting like terms and moving variable terms from one side of the equation to the other
  • Isolating the variable using inverse operations, then checking the solution by substituting it back in
  • Working confidently with positive and negative integer solutions, so students meet negative answers as well as tidy ones
  • Logical reasoning and deductive elimination as students rule suspects out clue by clue
  • Self-checking answer keys for every case, marked in red for fast grading

Five zombie cases to crack: The Midnight Moan, The Missing Brains, The Crawling Hand, The Howling Hallway, and The Lurching Horde. Answer keys included for every case.

What is a Mini Mystery Detective?

A no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit — like an escape room without the locks. Every solution matches one suspect's ID number, so each correct answer eliminates one name and a wrong answer leaves the case unsolved. Skill practice plus critical thinking in one engaging, self-checking worksheet set.

When to Use This Resource

  • Math centers and station rotations
  • Morning work and bell-ringer warm-ups
  • Early finishers and extension work
  • Substitute, relief and emergency sub plans
  • Homework and take-home practice
  • Spiral review and end-of-unit revision
  • Small-group intervention and re-teaching
  • Test prep and exam revision
  • Halloween, October and indoor-recess activities

Grade Levels

Designed for 7th, 8th, 9th and 10th graders. Also beneficial for struggling high school students who need extra practice solving equations, and for advanced 6th graders ready for a challenge.

Why Teachers Love Mystery Detectives

  • Zero prep — print and teach, no cutting, laminating or setup
  • Self-checking, so students get instant feedback and stay motivated
  • The detective hook pulls in reluctant and struggling learners
  • Builds real algebra skill alongside critical thinking and reasoning
  • Five separate one-page cases make it easy to differentiate or stretch across a week
  • Works for the whole class, small groups or independent practice

Ready for the next step? Try Multi-Step Equations with Variables on Both Sides With Brackets Mystery Detective, where students use the distributive property before they solve.

Follow Kiwiland Education for more algebra Mystery Detectives, including one-step equations, two-step and multi-step inequalities, systems of linear equations, and solving quadratics by factoring.

Love this resource?

Follow Kiwiland Education to discover more Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.

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All of our products are digital downloads — no physical items will be shipped.

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We do not offer refunds or exchanges once a file has been downloaded.

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  • Thank you from Kiwiland Education

How Math Mysteries Work

Each Math Mystery resource gives you five one-page cases that turn math practice into a clue-based investigation. Here's exactly how a case plays out.

CASE FILE 5 MYSTERIES

Every set is a ready-to-solve investigation

Students become the math detective. They read a story, crunch the numbers, and use their answers as evidence to rule out suspects — until only the culprit is left standing.

1
STEP 01

Read the Case

Each mystery opens with a short, themed story that sets the scene and tells students exactly what they're trying to find out — who took something, what went missing, or what really happened.

Hooks them in seconds
2
STEP 02

Solve the Problems

Students work through a set of problems built around the target skill. Every answer is a clue — so there's a real reason to get each one right.

Focused skill practice
3
STEP 03

Eliminate Suspects

Students match their answers against the suspect list and cross off names one clue at a time. Wrong math means the wrong suspect — so the activity self-checks as they go.

Self-checking built in
4
STEP 04

Crack the Case

One suspect is left — and students reveal who did it. The payoff makes review feel like a win, and they're ready to start the next case.

The satisfying reveal

See it in action

SOLVE A CLUEAnswer = 576
→
MATCH THE ANSWER576 = Bianca
→
CROSS OFFBianca
No apps. No logins. No prep. Just print, hand out, and let them investigate.

New to the format? Read What Is a Math Mystery? for how they work and how to run one in class.

Why Teachers Use Math Mysteries

Skill practice that feels like a case worth solving — and a download that quietly does a lot of your planning for you.

5one-page cases per set
0prep or setup time
color & black-and-white
answer keys included

Five Mysteries in One

Every download includes five separate one-page cases — enough for a full week of practice, a center rotation, or a sub-day backup that's always ready to go.

Truly No-Prep

No cutting, laminating, apps, or logins. Print in full color or black-and-white and hand them straight out — that's the whole setup.

Self-Checking by Design

Students need the right answers to rule out the right suspects, so accuracy matters — and the included answer keys mean no grading for you.

Fits Any Routine

Use one case as a morning warm-up, or spread the five across the week for centers, partner work, early finishers, or intervention.

Keeps Students Hooked

The mystery format gives even reluctant mathematicians a reason to keep solving. Review starts to feel like a game, not another worksheet.

Differentiation-Friendly

Great for on-level practice, an extension for advanced students, or a targeted review pass for anyone who needs another go at the skill.

NO PREP PRINT & GO ANSWER KEYS INCLUDED

What's in every Math Mystery set

5 full-color mysteries 5 black-and-white versions 5 complete answer keys Print-and-go teacher page Bonus coloring page
Practice that feels like a case worth cracking.

Frequently Asked Questions About Math Mysteries

Printable Math Mystery worksheets that turn math practice into clue-based detective investigations.

Is this Math Mystery a digital activity?

No. This is a printable PDF resource. Students complete the Math Mystery on paper. No physical item will be shipped.

Do students need apps, locks, passwords, or logins?

No. Students do not need apps, locks, passwords, or logins. Teachers can print the pages and use the Math Mystery straight away.

How do students solve the Math Mystery?

Each resource includes five one-page cases. In each one, students solve the math problems and use their answers to eliminate suspects until only one remains and the case is cracked.

Can this Math Mystery be used for sub plans?

Yes. Math Mysteries work well for sub plans because students can work through the clues independently, with a partner, or in small groups.

Can this Math Mystery be used for homeschool?

Yes. This printable Math Mystery can be used for homeschool lessons, tutoring, review practice, enrichment, or extra math support.

Will this work for early finishers or math centers?

Yes. Math Mysteries are a good fit for early finishers, math centers, small groups, independent work, review lessons, and extra practice activities.



Multi step equations variables on both sides zombie mystery detective grades 7-10

Multi-Step Equations Both Sides | Mystery Detective Worksheets | Grades 7–10 | Zombie

$4.00

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