-x=6+12

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Solution for -x=6+12 equation: 


Simplifying
-1x = 6 + 12

Combine like terms: 6 + 12 = 18
-1x = 18

Solving
-1x = 18

Solving for variable 'x'.

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

Divide each side by '-1'.
x = -18

Simplifying
x = -18

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