Solve One Step Addition Subtraction Equations

r + 20 = 27

• r = 7

• r = 47

• r = 13

• r = 20

a + 18 = 24

• S = 2

• S = 42

• S = 18

• S = 6

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

x + 12 = 20

• x = 32

• x = 15

• x = 8

• x = 30

Solve the equation.

x + 9 = -5

Mathematical Equivalence

OFF

What is the correct step to solve for the variable?
15 = m - 5

• add 15 to both sides

• add 5 to both sides

• subtract 15 from both sides

• subtract 5 from both sides

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

y - 14 = 66 Solve the equation. Check your answer. Show all work.

• 80

• 52

• 79

• Answer Not Given

x - 4 = -3

Solve the equation. Check your answer. Show all work.

• x = -7

• x = 1

• x = 12

• x = -12

a + 16 = 9

Solve the equation. Check your answer. Show all work.

• 25

• -7

• 7

• 9/16