Addition & Subtraction Equations

n + 8 = 12

• n = 4

• n = 5

• n = 8

• n = 12

100 - x = 70

• x = 100

• x = 70

• x = 30

• x = 40

65 = 40 + c

• c = 40

• c = 20

• c = 65

• c = 25

17 + b = 20

• b = 3

• b = 17

• b = 20

• b = 37

29 = 21 + x

• x = 29

• x = 21

• x = 50

• x = 8

87 = 100 - x

• x = 13

• x = 87

• x = 187

• x = 100

Solve
12 = y + 5

• y = 17

• y = -7

• y = 8

• y = 7

Solve
34.7 = y + 5.3

• y = 29.4

• y = 30.4

• y = 28.4

• y = 40

Solve for c. 
14 = c - 7

• 7

• 14

• 21

• 28

Solve for y. 
y - 35 = 50

• 25

• 15

• 85

• 35