42-x=12x

Solution for 42-x=12x equation:

Simplifying
42 + -1x = 12x

Solving
42 + -1x = 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
42 + -1x + -12x = 12x + -12x

Combine like terms: -1x + -12x = -13x
42 + -13x = 12x + -12x

Combine like terms: 12x + -12x = 0
42 + -13x = 0

Add '-42' to each side of the equation.
42 + -42 + -13x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -13x = 0 + -42
-13x = 0 + -42

Combine like terms: 0 + -42 = -42
-13x = -42

Divide each side by '-13'.
x = 3.230769231

Simplifying
x = 3.230769231