What does 22 equal?
4
Solve x + 5 = 12
x=7
Apply the distributive property
2(x+2)
2x+4
Which part of the equation is the variable?
3x+2=15
x
What does 33 equal?
27
Solve x - 7 = 14
x=21
Apply the Distributive Property
3(x-4)
3x-12
What kind of variable do YOU change?
Independent Variable
What does 43 equal?
64
Solve 3x = 15
x=5
Apply the Distributive Property
2(3x+12)
6x+24
What kind of variable changes ONLY when you change something?
Dependent Variable
What does 103 equal?
1000
Solve x / 2 = 4
x=8
Apply the Distributive Property
5(3x+6)
15x+30
You are riding a bike. The further you ride the bike (r), the more calories you will burn (c). Which one is the dependent variable
C
What does x * x * x * x * x equal?
x5
Solve 2x + 5 = 19
x=7
Apply the Distributive Property
6(3x+4)
18x+24
Why do we use variables in math?
There is a number that we do not know so we label it as something else.