12x+40=4

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Solution for 12x+40=4 equation: 


Simplifying
12x + 40 = 4

Reorder the terms:
40 + 12x = 4

Solving
40 + 12x = 4

Solving for variable 'x'.

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

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

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

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

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

Simplifying
x = -3

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