-2x+9=x-12

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Solution for -2x+9=x-12 equation: 


Simplifying
-2x + 9 = x + -12

Reorder the terms:
9 + -2x = x + -12

Reorder the terms:
9 + -2x = -12 + x

Solving
9 + -2x = -12 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + -2x + -1x = -12 + x + -1x

Combine like terms: -2x + -1x = -3x
9 + -3x = -12 + x + -1x

Combine like terms: x + -1x = 0
9 + -3x = -12 + 0
9 + -3x = -12

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

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

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

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

Simplifying
x = 7

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