Unit 4 Review (Equations and Inequalities)

Translate into an algebraic expression:

6 more than 3 times a number

• 6 + 3x

• 3x + 6

• 6x + 3

• 6x + 3

Translate into an algebraic expression:

5 increased by half a number

•  $5\ +\ \frac{x}{2}$ 

•  $\frac{x}{2}\ +\ 5$ 

•  $2x\ +\ 5$ 

•  $\frac{1}{2}\ +\ 5x$ 

Translate into an algebraic expression:

9 less than 5 times a number

• 5x - 9

• 9 - 5x

• 5 - 9x

• 9x - 5

Solve:

a + 15 = 6

• a = -9

• a = 23

• a = 9

• a = -23

Solve:

 $\frac{w}{8}\ =\ -6$  

•  $w\ =\ -3$  

•  $w\ =\ 3$  

•  $w\ =\ -48$  

•  $w\ =\ 48$  

Solve:

108 = -4k

• k = -27

• k = -104

• k = 112

• k = 27

Solve:

-6 + 5x = 19

• x = 25

• x = 5

• x = -5

• x = 2.6

Solve:

 $\frac{1}{2}x\ =\ 16$  

• x = 8

• x = 32

• x = 14

• x = 18

Solve:

37 = 6q + 1

• q = 6

• q = 36

• q = 216

• q = 30

3y - 2.6 = 0.1

• y = 2.7

• y = 0.9

• y = 2.4

• y = 5.7