15-x=4x+12

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Solution for 15-x=4x+12 equation:


Simplifying
15 + -1x = 4x + 12

Reorder the terms:
15 + -1x = 12 + 4x

Solving
15 + -1x = 12 + 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.
15 + -1x + -4x = 12 + 4x + -4x

Combine like terms: -1x + -4x = -5x
15 + -5x = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -5x = 12 + 0
15 + -5x = 12

Add '-15' to each side of the equation.
15 + -15 + -5x = 12 + -15

Combine like terms: 15 + -15 = 0
0 + -5x = 12 + -15
-5x = 12 + -15

Combine like terms: 12 + -15 = -3
-5x = -3

Divide each side by '-5'.
x = 0.6

Simplifying
x = 0.6

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