Add It Up
x + 7 = 15
x = 8
x − 5 = 11
x = 16
4x = 28
x = 7
x/3 = 6
x = 18
x − 9 = −9
x = 0
n + 12 = 30
n = 18
n − 13 = 27
n = 40
9n = 72
n = 8
n/5 = 12
n = 60
a + 25 = −5
a = −30
y + 9 = 4
y = −5
y − 8 = −3
y = 5
−6y = 54
y = −9
y/(-4) = 7
y = −28
−x = 17
x = −17
m + (−6) = 10
m = 16
m − (−7) = 2
m = −5
−8m = −96
m = 12
m/(-9) = -6
m = 54
52 = −4p
p = −13
−14 + k = −23
k = −9
−15 = k − 22
k = 7
15k = −225
k = −15
-11 = k/12
k = −132
−18 = t + (−31)
t = 13