Front

x + 7 = 13

Back

x = 6

Front

y - 7 = 5

Back

y = 12

Front

z + 5 = -8

Back

z = -13

Front

a - 2 = -6

Back

a = -4

Front

b + 13 = 13

Back

b = 0

Front

c - 11 = 9

Back

c = 20

Front

Solve for s.
54 = s + 34

Back

20

Front

Solve for t.
16 = t + 5

Back

11

Front

Solve for x.
x + 5 = 23

Back

x = 18

Front

Solve for c.
14 = c - 7

Back

21