12-x=4x

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Solution for 12-x=4x equation:


Simplifying
12 + -1x = 4x

Solving
12 + -1x = 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
12 + -1x + -4x = 4x + -4x

Combine like terms: -1x + -4x = -5x
12 + -5x = 4x + -4x

Combine like terms: 4x + -4x = 0
12 + -5x = 0

Add '-12' to each side of the equation.
12 + -12 + -5x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -5x = 0 + -12
-5x = 0 + -12

Combine like terms: 0 + -12 = -12
-5x = -12

Divide each side by '-5'.
x = 2.4

Simplifying
x = 2.4

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