Final Review for 2020-2021 Spring Semester

Solve the equation: 
x + 7 = 12

• x = 5
• x = 19
• x = -5
• x = 84

Solve the equation:
x - 3 = -12

• x = 9 
• x = -15
• x = -9
• x = 15

Solve the equation:
x - 4 = 6

• x = 10
• x = -10
• x = 2
• x = -2

Solve the equation:
4p = 16

• p = 12
• p = -12
• p = -4
• p = 4

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

r + 20 = 27

• r = 7
• r = 47
• r = 13
• r = 20

S + 4 = 24

• S = 28

• S = 6

• S = 18

• S = 20

4x = 8

• 12

• 2

• 4

• 3

What would be the best first step to solving the equation?
-3=x+5

• add 3 to both sides
• subtract 5 from both sides
• add 5 to both sides
• subtract -5 from both sides

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18