15-(-x)=80

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Solution for 15-(-x)=80 equation:


Simplifying
15 + -1(-1x) = 80

Remove parenthesis around (-1x)
15 + -1 * -1x = 80

Multiply -1 * -1
15 + 1x = 80

Solving
15 + 1x = 80

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 1x = 80 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = 80 + -15
1x = 80 + -15

Combine like terms: 80 + -15 = 65
1x = 65

Divide each side by '1'.
x = 65

Simplifying
x = 65

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