-3x-12=28-x

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Solution for -3x-12=28-x equation:


Simplifying
-3x + -12 = 28 + -1x

Reorder the terms:
-12 + -3x = 28 + -1x

Solving
-12 + -3x = 28 + -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.
-12 + -3x + x = 28 + -1x + x

Combine like terms: -3x + x = -2x
-12 + -2x = 28 + -1x + x

Combine like terms: -1x + x = 0
-12 + -2x = 28 + 0
-12 + -2x = 28

Add '12' to each side of the equation.
-12 + 12 + -2x = 28 + 12

Combine like terms: -12 + 12 = 0
0 + -2x = 28 + 12
-2x = 28 + 12

Combine like terms: 28 + 12 = 40
-2x = 40

Divide each side by '-2'.
x = -20

Simplifying
x = -20

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