Vocabulary
This is a letter that stands for an unkown number.
A Variable.
x - 4 = 12
x = 16
4x = 28
x = 7
x/(12) = 27
x = 324
2x + 3 = 23
x = 10
The inverse operation means the ______________ operation.
Opposite
y + 3 = 23
y = 20
5/(x) = 14
x = 70
9g = 54
g = 6
7y - 9 = 19
y = 4
The inverse of subtraction is...
Addition
n - 10 = 150
n = 160
22n = 44
n = 2
36 = 6x
x = 6
3m + 7 = 31
m = 8
The inverse of Multiplication is...
Division
x + 40 = 65
x = 25
8/(y) = 8
y = 64
11/(n) = 187
n = 2,057
5y - 11 = 19
y = 6
Another word for "evaluate" is...
Solve
m + 13 = 137
m = 124
13m = 117
m = 9
y/(7) = 84
y = 84
9y - 6 = 30
y = 4