3x-6x+12=-9

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Solution for 3x-6x+12=-9 equation: 


Simplifying
3x + -6x + 12 = -9

Reorder the terms:
12 + 3x + -6x = -9

Combine like terms: 3x + -6x = -3x
12 + -3x = -9

Solving
12 + -3x = -9

Solving for variable 'x'.

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

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

Combine like terms: 12 + -12 = 0
0 + -3x = -9 + -12
-3x = -9 + -12

Combine like terms: -9 + -12 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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