-12=4x+8x

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Solution for -12=4x+8x equation:


Simplifying
-12 = 4x + 8x

Combine like terms: 4x + 8x = 12x
-12 = 12x

Solving
-12 = 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.
-12 + -12x = 12x + -12x

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

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

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

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

Divide each side by '-12'.
x = -1

Simplifying
x = -1

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