-1*(8+x)=7

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Solution for -1*(8+x)=7 equation: 


Simplifying
-1(8 + x) = 7
(8 * -1 + x * -1) = 7
(-8 + -1x) = 7

Solving
-8 + -1x = 7

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 = 7 + 8

Combine like terms: -8 + 8 = 0
0 + -1x = 7 + 8
-1x = 7 + 8

Combine like terms: 7 + 8 = 15
-1x = 15

Divide each side by '-1'.
x = -15

Simplifying
x = -15

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