-12-3x=40

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Solution for -12-3x=40 equation: 


Simplifying
-12 + -3x = 40

Solving
-12 + -3x = 40

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 = 40 + 12

Combine like terms: -12 + 12 = 0
0 + -3x = 40 + 12
-3x = 40 + 12

Combine like terms: 40 + 12 = 52
-3x = 52

Divide each side by '-3'.
x = -17.33333333

Simplifying
x = -17.33333333

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