-12x-3x+4=3x+40

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Solution for -12x-3x+4=3x+40 equation:


Simplifying
-12x + -3x + 4 = 3x + 40

Reorder the terms:
4 + -12x + -3x = 3x + 40

Combine like terms: -12x + -3x = -15x
4 + -15x = 3x + 40

Reorder the terms:
4 + -15x = 40 + 3x

Solving
4 + -15x = 40 + 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.
4 + -15x + -3x = 40 + 3x + -3x

Combine like terms: -15x + -3x = -18x
4 + -18x = 40 + 3x + -3x

Combine like terms: 3x + -3x = 0
4 + -18x = 40 + 0
4 + -18x = 40

Add '-4' to each side of the equation.
4 + -4 + -18x = 40 + -4

Combine like terms: 4 + -4 = 0
0 + -18x = 40 + -4
-18x = 40 + -4

Combine like terms: 40 + -4 = 36
-18x = 36

Divide each side by '-18'.
x = -2

Simplifying
x = -2

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