-x-9=-12

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Solution for -x-9=-12 equation:


Simplifying
-1x + -9 = -12

Reorder the terms:
-9 + -1x = -12

Solving
-9 + -1x = -12

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -1x = -12 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = -12 + 9
-1x = -12 + 9

Combine like terms: -12 + 9 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3

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