12x-39=-x

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Solution for 12x-39=-x equation:


Simplifying
12x + -39 = -1x

Reorder the terms:
-39 + 12x = -1x

Solving
-39 + 12x = -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-39 + 12x + x = -1x + x

Combine like terms: 12x + x = 13x
-39 + 13x = -1x + x

Combine like terms: -1x + x = 0
-39 + 13x = 0

Add '39' to each side of the equation.
-39 + 39 + 13x = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 13x = 0 + 39
13x = 0 + 39

Combine like terms: 0 + 39 = 39
13x = 39

Divide each side by '13'.
x = 3

Simplifying
x = 3

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