One Step Equations
collecting like terms
Two-Step Equations
Random
Substitution
100
Solving Equations
4x = 8
x = 2
100
4x + 3y + 3 - 2x +18y
2x+21y+3
100
6x – 13 = 11
x = 4
100
What is a variable?
an unknown (letter)
100
x=2, y=3
2x + 3y
13
200
Solving Equations
100- x = 30
x = 70
200
16x - 3 +12y -8 -12x
4x+12y-11
200
3x + 5 = 14
x = 3
200
What are the four operations we use?
Add, Subtract, Multiply, Divide
200
y=2 , x=2
5x + 7y
24
300
Solving Equations
9m=108
x = 12
300
18y + 2 + 6x - 4y - 12x
12y-6x+2
300
x/2 +10=-8
x = -36
300
What is an equation?
A mathematical statement with an equal sign.
300
6x - 2y
x=3, y=5
8
400
6x = 24
x=4
400
12x+ 6x - 7y-10y +3
18x-17y +3
400
x/2-4=10
x = 28
400
What is an algebraic expression?
A mathematical statement without an equal sign
400
x= 10
y=3 4x- 2y=
34
500
Solving Equations
30= 5x
x=6
500
Simplify
3y-5y + 14 - 3x-12x
-8y-15x +14
500
3x + 4 = 13
x=3
500
What do the brackets mean in the following?
2 (3x-3)
Distributive property
500
x=9
y=4 3+ 3x- 4y=
14