-x-12=2x+3

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Solution for -x-12=2x+3 equation:


Simplifying
-1x + -12 = 2x + 3

Reorder the terms:
-12 + -1x = 2x + 3

Reorder the terms:
-12 + -1x = 3 + 2x

Solving
-12 + -1x = 3 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-12 + -1x + -2x = 3 + 2x + -2x

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

Combine like terms: 2x + -2x = 0
-12 + -3x = 3 + 0
-12 + -3x = 3

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

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

Combine like terms: 3 + 12 = 15
-3x = 15

Divide each side by '-3'.
x = -5

Simplifying
x = -5

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