-12-(-3)=x

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Solution for -12-(-3)=x equation:


Simplifying
-12 + -1(-3) = x

Multiply -1 * -3
-12 + 3 = x

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

Solving
-9 = 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.
-9 + -1x = x + -1x

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

Add '9' to each side of the equation.
-9 + 9 + -1x = 0 + 9

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

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

Divide each side by '-1'.
x = -9

Simplifying
x = -9

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