Prealgebra Post Test

how would you solve this equation: 9x=153? 

• multiply
• divide
• add
• subtract

Solve the equation:
-5x = 25

• x = 20
• x = -20
• x = -5
• x = 5

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

x - 8 = -5 

• 13
• -13
• 3
• -3

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

7.    -4y = 48

• x = -52
• x = -12
• x = -44
• x = -13

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

Which equation has x = 5 as the solution?

• x + 15 = 10
• 2x = 5
• 2x = 10