Evaluate Equations and Expressions

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

Solve for w:

6w - 1 = 11

• 2

• 1.2

• 12

• -2

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

Evaluate 2r + 1      if   r = 3

• 6

• 5

• 7

• 8

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

Find the value of the expression.

• -12

• 12

• 14

• -14

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

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

c

d

e

f

3

-1

7

0

9

4

3x + 8   if x = 2

• 13

• 14

• 15

• 16

If x = 3 solve x + 4 =

• 5

• 6

• 7

• 8