-5x+30-7x=3x+120

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Solution for -5x+30-7x=3x+120 equation:


Simplifying
-5x + 30 + -7x = 3x + 120

Reorder the terms:
30 + -5x + -7x = 3x + 120

Combine like terms: -5x + -7x = -12x
30 + -12x = 3x + 120

Reorder the terms:
30 + -12x = 120 + 3x

Solving
30 + -12x = 120 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
30 + -12x + -3x = 120 + 3x + -3x

Combine like terms: -12x + -3x = -15x
30 + -15x = 120 + 3x + -3x

Combine like terms: 3x + -3x = 0
30 + -15x = 120 + 0
30 + -15x = 120

Add '-30' to each side of the equation.
30 + -30 + -15x = 120 + -30

Combine like terms: 30 + -30 = 0
0 + -15x = 120 + -30
-15x = 120 + -30

Combine like terms: 120 + -30 = 90
-15x = 90

Divide each side by '-15'.
x = -6

Simplifying
x = -6

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