One-Step Equations
x - 9 = 13
x = 22
6x – 13 = 11
x= 4
Solving Equations
3(x + 1) = 21
x = 6
4x - 2 = 3x + 5
x = 7
How would we get x alone?
6x=36
Divide by 6 on both sides
x + 16 = 0
x= -16
3x + 5 = 14
x= 3
Solving Equations
2(x - 2) = 10
x = 7
2x - 8 = 5x + 4
x = -4
What operation is the inverse of subtraction?
addition
4 = x - 8
x = 12
(x/2)+2 =-8
x= -20
Solving Equations
-4(x - 3) = -48
x = 15
3 + 4x = 2x + 11
x = 4
What operation is the inverse of multiplication?
division
5x = -80
x= -16
(x/2)+8=10
x= 4
Solving Equations
5(-2x + 3) = 35
x = -2
x = 1
How would we get x alone?
x/8 - 7 = 25
add 7 on both sides, then multiply by 8 on both sides
x/5 =7
x= 35
(x/3)-3=-3
x= 0
Solving Equations
-9(-4x + 6) = -234
x = -5
10x + 18 = 8x + 4
x = -7
Solve for x:
8 + 4x = 9x - 7
x = 3