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Grade 7 math, Common Core 7.EE.A.1
Simplify each expression by combining like terms.
Grade 7 math. Each answer has a few worked steps, to help check the method as well as the answer.
1. 7a − b
2. −8x − 2
x and −9x make −8x−6 and 4 make −2
3. 3a + b
4. 7y − 4
y and 6y make 7y−8 and 4 make −4
5. −2n − 8
7n and −9n make −2n−6 and −2 make −8
6. −12x + 10
−3x and −9x make −12x3 and 7 make 10
7. 3x
−3x and 6x make 3x8 and −8 make 0
8. −3a + 6b
9. −7x − 5
x and −8x make −7x−1 and −4 make −5
10. 2a + 3b
The answer key prints on its own page. You’re welcome to print and copy these worksheets for your own kids or class.
Like terms have exactly the same variable part, like 5x and −2x, or 3 and 7. To simplify, add or subtract the numbers in front of the like terms and keep the variable. Terms with different variables, like 4a and 5b, stay separate.
Answer: 4y + 14
Answer: 3x + 3
Answer: 10x + 14
On StudyWiz, your kid can practice combining like terms with 5-question quizzes that are checked as they go, with an explanation for every answer. When a homework problem is the trouble, Wiz gives a hint for each step instead of the answer.
More from Expressions and equations:
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