-x=15+x

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Solution for -x=15+x equation:


Simplifying
-1x = 15 + x

Solving
-1x = 15 + x

Solving for variable 'x'.

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

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

Combine like terms: -1x + -1x = -2x
-2x = 15 + x + -1x

Combine like terms: x + -1x = 0
-2x = 15 + 0
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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