4-(-x)=12

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Solution for 4-(-x)=12 equation: 


Simplifying
4 + -1(-1x) = 12

Remove parenthesis around (-1x)
4 + -1 * -1x = 12

Multiply -1 * -1
4 + 1x = 12

Solving
4 + 1x = 12

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 1x = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 1x = 12 + -4
1x = 12 + -4

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

Divide each side by '1'.
x = 8

Simplifying
x = 8

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