One-Step Equations
Solve for x:
5x = 20
x = 4
WORK
5x = 20
5x/5 = 20/5
x = 4
Solve for x:
3x/4 - x/3 = 10
[remember what fractions really look like?]
x = 24
WORK
3x/4 - x/3 = 10
9x/12 - 4x/12 = 10 [write fractions/common denominator]
5x/12 = 10
12*(5x/12) = 10*12
5x/5 = 120/5
x = 24