Addition Property
x - 8 = 12
x = 20
3 + x = 18
x = 15
x / 5 = 7
x = 35
4x= 12
x = 3
What is an equation?
A mathematical sentence that uses an equal sign.
x - 10 = 4
x = 14
12 + x = 15
x = 3
x / 3 = 9
x = 27
72 = 9x
x = 8
A value that makes the equation true.
x - 6 = 17
x = 23
13 = x + 13
x = 0
10 = x / 4
x = 40
12x = 144
x = 12
What does the word Inverse mean?
Undo, opposite, backwards, reverse
29 = x - 11
x = 40
x + 2.5 = 4.0
x = 1.5
x / 12 = 9
x = 108
5x = 105
x = 21
What is the inverse operation of Multiplication?
Division
x - 0.6 = 1.1
x = 1.7
6.4 = x + 2.6
x = 3.8
x / 7 = 22
x = 154
3x = 135
x = 45
The independent variable ________ the dependent variable
effects