4x-40=12

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Solution for 4x-40=12 equation: 


Simplifying
4x + -40 = 12

Reorder the terms:
-40 + 4x = 12

Solving
-40 + 4x = 12

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 + 4x = 12 + 40

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

Combine like terms: 12 + 40 = 52
4x = 52

Divide each side by '4'.
x = 13

Simplifying
x = 13

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