Skip to content
Math Sheet Studio
GeneratorWorksheets by gradeBlogPricing
GeneratorWorksheets by gradeBlogPricing
Math Sheet Studio

Printable math worksheets you can fix one question at a time.

Product

GeneratorPricingAll topicsBlog

Worksheets

Grade 1Grade 2Grade 3Grade 4Grade 5Grade 6Grade 7Grade 8

Company

ContactPrivacyTerms
© 2026 Math Sheet StudioPrivacy · Terms
Worksheets›Grade 7›Expressions & equations›Combining like terms

Combining Like Terms Worksheets

Free printable worksheets with answer keys. Pick a level, preview the questions, then open the sheet to swap or delete any single question.

Grade 7CCSS 7.EE.A.1Answer key includedPDF · Print
Open in generatorStart with an easy sheet

Easy: Two or three terms, one variable

  1. 1.5x + 3x
  2. 2.8x + 3 − 2x
  3. 3.8x + 4 + 9x
  4. 4.3x − 5x
  5. 5.4x − 5 − x
  6. 6.8x + 4x
Preview shows 6 of 12 questions. Every sheet is new; open it to change any question.

Worksheet variations

Like terms have the same variable part. Add or subtract their coefficients and keep the variable.

Easy5x + 3xTwo or three terms, one variableMedium−7x − 6 + 9 − 8xFour terms with negativesHard4 − 7y + 3x + 9x + 3yTwo variables and a constant

How to solve it: a worked example

Simplify each expression.

  1. Start3x − 6x
  2. Group like terms(3x − 6x)
  3. Add the coefficients−3x
  4. Answer−3x

Common mistakes to watch for

  • Combining unlike terms, such as 3x + 2 = 5x.
  • Dropping the sign in front of a term when regrouping.
  • Treating x as having a coefficient of 0 instead of 1.

Tip: tick “Step-by-step answer key” in the generator to print each step for marking.

Related worksheets

Distributive propertyTwo-step equationsTwo-step inequalitiesMulti-step equations (Grade 8)Equations with variables on both sides (Grade 8)

FAQ

Is every worksheet different?

Yes. Numbers are generated each time, and the answer key is calculated for that sheet. Swap any single question and its answer updates too.

Can I mix combining like terms with other skills?

Yes. In the generator, add more skills; each gets its own section on the sheet with its own instructions.

Is it free to print?

Yes. Generating and printing from the browser is free with no sign-up. PDF downloads need a free account.