-12-3x=-57

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Solution for -12-3x=-57 equation: 


Simplifying
-12 + -3x = -57

Solving
-12 + -3x = -57

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + -3x = -57 + 12

Combine like terms: -12 + 12 = 0
0 + -3x = -57 + 12
-3x = -57 + 12

Combine like terms: -57 + 12 = -45
-3x = -45

Divide each side by '-3'.
x = 15

Simplifying
x = 15

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