Expressions and Equations Pretest

Solve the equation for x

Hint: which answer makes the equation true?

-4x = -36 x=

• 4

• 5

• -9

• 9

2d + 9 when d = 1

• 11

• 5

• 10

• 6

12 ÷ 3x when x = 1

• 11

• 8

• 10

• 4

5a + 2 when a = 10

• 42

• 36

• 52

• 86

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

Which equation represents this model?

• 3x + 2 = 2x + 4

• 3x - 2 = 2x - 3

• 3 + 2x = 2 + 4x

• 3 - 2x = 2 - 4x

• A

• B

• C

• D

The equation for the table below is y=2x+5, fill in the missing values.

c

d

e

f

4

0

7

-1

9

3

6c - 1 + 5c when c = 2

• 31

• 41

• 51

• 21