Equation and Expressions Review Problems

Identify the variables in the expressions: 5x + 4 -2y -8

• 5

• x, y

• -8

• 2y

Identify the coefficient in the expression.
6y + 7

• 6y
• 7
• 6
• 1

How many terms are in the expression?
3x + 7+ p - 12

• 3
• 7
• 4
• 12

Identify the constant:

7c + 8 y + 32

• 7

• c

• y

• 32

Simplify.

7v + 2 + 12 + 2v

• 23

• 23v

• 9 + 14v

• 9v + 14

Simplify.

9a + 10(2a + 1)

• 21a + 1

• 9a +21

• 29a +10

• 39a

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify the following expression:
-6x + 4(-x - 3)

• -2x - 12
• 10x + 12
• -10x - 12
• -2x + 12

Which of the following is equivalent to
-8+9(5 + 2x)?

• -5 - 2x
• 18x+37
• -37 + 18x
• 18x - 53