-18-x=12

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Solution for -18-x=12 equation: 


Simplifying
-18 + -1x = 12

Solving
-18 + -1x = 12

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + -1x = 12 + 18

Combine like terms: -18 + 18 = 0
0 + -1x = 12 + 18
-1x = 12 + 18

Combine like terms: 12 + 18 = 30
-1x = 30

Divide each side by '-1'.
x = -30

Simplifying
x = -30

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