1. Copy and complete using a review term from the list below.
Vocabulary Check
Copy and complete using a review term from the list below.
variable
coefficient
constant term
equation
solution of an equation
coordinate plane
1. In the expression 5y, y is the and 5 is the – ? – ? .
ANSWER
variable; coefficient
A statement with an equal sign between two expressions is a(n) 2. ?
ANSWER
equation

2. Copy and complete using a review term from the list below.
Vocabulary Check
Copy and complete using a review term from the list below.
variable
coefficient
constant term
equation
solution of an equation
coordinate plane 3.
The value of x that makes a true statement is a(n) 2x + 5 = 12 ?
ANSWER
solution of an equation
Ordered pairs like and can be graphed in the 4. ? ( )
–2, 3
4, 6
ANSWER
coordinate plane

3. Simplify the expression by combining like terms.
Skill Check
Simplify the expression by combining like terms. 5. 7x + 4 – 3x
ANSWER + 4 4x 6. + 5x 2x – x
ANSWER 2x 7. + 4 x –
12x
ANSWER 4 –
11x 8. – 5 6x + x
ANSWER – 5 7x

4. Simplify the expression by combining like terms.
Skill Check
Simplify the expression by combining like terms. 9.
15y + 9x – 6x – y
ANSWER + 3x
14y
10. + 8x
13y – 2x 3y 10
ANSWER + 6x
10y – 10

5. Solve the equation. Check your solution.
Skill Check
Solve the equation. Check your solution.
11. 3 = 9x – 24
ANSWER 3
ANSWER 2 1 – 8x 7 = 3
12. + 9 6x = 45 –
13.
ANSWER 9 – – 1 =
14. 6 4 x
ANSWER 28

6. Solve the equation. Check your solution.
Skill Check
Solve the equation. Check your solution.
15. 15 – x = – 22
ANSWER 37
16. + 4 = 9 2 x –
ANSWER 26 –