120=-3x+7(-2x-12)

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Solution for 120=-3x+7(-2x-12) equation:


Simplifying
120 = -3x + 7(-2x + -12)

Reorder the terms:
120 = -3x + 7(-12 + -2x)
120 = -3x + (-12 * 7 + -2x * 7)
120 = -3x + (-84 + -14x)

Reorder the terms:
120 = -84 + -3x + -14x

Combine like terms: -3x + -14x = -17x
120 = -84 + -17x

Solving
120 = -84 + -17x

Solving for variable 'x'.

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

Add '17x' to each side of the equation.
120 + 17x = -84 + -17x + 17x

Combine like terms: -17x + 17x = 0
120 + 17x = -84 + 0
120 + 17x = -84

Add '-120' to each side of the equation.
120 + -120 + 17x = -84 + -120

Combine like terms: 120 + -120 = 0
0 + 17x = -84 + -120
17x = -84 + -120

Combine like terms: -84 + -120 = -204
17x = -204

Divide each side by '17'.
x = -12

Simplifying
x = -12

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