12+3x=(-x+7)-79

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Solution for 12+3x=(-x+7)-79 equation:


Simplifying
12 + 3x = (-1x + 7) + -79

Reorder the terms:
12 + 3x = (7 + -1x) + -79

Remove parenthesis around (7 + -1x)
12 + 3x = 7 + -1x + -79

Reorder the terms:
12 + 3x = 7 + -79 + -1x

Combine like terms: 7 + -79 = -72
12 + 3x = -72 + -1x

Solving
12 + 3x = -72 + -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 = -72 + -1x + x

Combine like terms: 3x + x = 4x
12 + 4x = -72 + -1x + x

Combine like terms: -1x + x = 0
12 + 4x = -72 + 0
12 + 4x = -72

Add '-12' to each side of the equation.
12 + -12 + 4x = -72 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = -72 + -12
4x = -72 + -12

Combine like terms: -72 + -12 = -84
4x = -84

Divide each side by '4'.
x = -21

Simplifying
x = -21

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