3x-12=-9x

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Solution for 3x-12=-9x equation: 


Simplifying
3x + -12 = -9x

Reorder the terms:
-12 + 3x = -9x

Solving
-12 + 3x = -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-12 + 3x + 9x = -9x + 9x

Combine like terms: 3x + 9x = 12x
-12 + 12x = -9x + 9x

Combine like terms: -9x + 9x = 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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