(8-x)=-4

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Solution for (8-x)=-4 equation: 


Simplifying
(8 + -1x) = -4

Remove parenthesis around (8 + -1x)
8 + -1x = -4

Solving
8 + -1x = -4

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + -1x = -4 + -8

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

Combine like terms: -4 + -8 = -12
-1x = -12

Divide each side by '-1'.
x = 12

Simplifying
x = 12

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