8+x=3x-12

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Solution for 8+x=3x-12 equation:


Simplifying
8 + x = 3x + -12

Reorder the terms:
8 + x = -12 + 3x

Solving
8 + x = -12 + 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.
8 + x + -3x = -12 + 3x + -3x

Combine like terms: x + -3x = -2x
8 + -2x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
8 + -2x = -12 + 0
8 + -2x = -12

Add '-8' to each side of the equation.
8 + -8 + -2x = -12 + -8

Combine like terms: 8 + -8 = 0
0 + -2x = -12 + -8
-2x = -12 + -8

Combine like terms: -12 + -8 = -20
-2x = -20

Divide each side by '-2'.
x = 10

Simplifying
x = 10

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