72+4x=45+13x

Solution for 72+4x=45+13x equation:

Simplifying
72 + 4x = 45 + 13x

Solving
72 + 4x = 45 + 13x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-13x' to each side of the equation.
72 + 4x + -13x = 45 + 13x + -13x

Combine like terms: 4x + -13x = -9x
72 + -9x = 45 + 13x + -13x

Combine like terms: 13x + -13x = 0
72 + -9x = 45 + 0
72 + -9x = 45

Add '-72' to each side of the equation.
72 + -72 + -9x = 45 + -72

Combine like terms: 72 + -72 = 0
0 + -9x = 45 + -72
-9x = 45 + -72

Combine like terms: 45 + -72 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3