-3x-8=x+20

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Solution for -3x-8=x+20 equation:


Simplifying
-3x + -8 = x + 20

Reorder the terms:
-8 + -3x = x + 20

Reorder the terms:
-8 + -3x = 20 + x

Solving
-8 + -3x = 20 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-8 + -3x + -1x = 20 + x + -1x

Combine like terms: -3x + -1x = -4x
-8 + -4x = 20 + x + -1x

Combine like terms: x + -1x = 0
-8 + -4x = 20 + 0
-8 + -4x = 20

Add '8' to each side of the equation.
-8 + 8 + -4x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + -4x = 20 + 8
-4x = 20 + 8

Combine like terms: 20 + 8 = 28
-4x = 28

Divide each side by '-4'.
x = -7

Simplifying
x = -7

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