-8=12-x

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Solution for -8=12-x equation:


Simplifying
-8 = 12 + -1x

Solving
-8 = 12 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-8 + x = 12 + -1x + x

Combine like terms: -1x + x = 0
-8 + x = 12 + 0
-8 + x = 12

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

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

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

Simplifying
x = 20

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