-8x-40=7x-12+13x

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Solution for -8x-40=7x-12+13x equation:


Simplifying
-8x + -40 = 7x + -12 + 13x

Reorder the terms:
-40 + -8x = 7x + -12 + 13x

Reorder the terms:
-40 + -8x = -12 + 7x + 13x

Combine like terms: 7x + 13x = 20x
-40 + -8x = -12 + 20x

Solving
-40 + -8x = -12 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
-40 + -8x + -20x = -12 + 20x + -20x

Combine like terms: -8x + -20x = -28x
-40 + -28x = -12 + 20x + -20x

Combine like terms: 20x + -20x = 0
-40 + -28x = -12 + 0
-40 + -28x = -12

Add '40' to each side of the equation.
-40 + 40 + -28x = -12 + 40

Combine like terms: -40 + 40 = 0
0 + -28x = -12 + 40
-28x = -12 + 40

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

Divide each side by '-28'.
x = -1

Simplifying
x = -1

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