4-12x=40

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Solution for 4-12x=40 equation: 


Simplifying
4 + -12x = 40

Solving
4 + -12x = 40

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + -12x = 40 + -4

Combine like terms: 4 + -4 = 0
0 + -12x = 40 + -4
-12x = 40 + -4

Combine like terms: 40 + -4 = 36
-12x = 36

Divide each side by '-12'.
x = -3

Simplifying
x = -3

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