72=4x-12

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Solution for 72=4x-12 equation:


Simplifying
72 = 4x + -12

Reorder the terms:
72 = -12 + 4x

Solving
72 = -12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
72 + -4x = -12 + 4x + -4x

Combine like terms: 4x + -4x = 0
72 + -4x = -12 + 0
72 + -4x = -12

Add '-72' to each side of the equation.
72 + -72 + -4x = -12 + -72

Combine like terms: 72 + -72 = 0
0 + -4x = -12 + -72
-4x = -12 + -72

Combine like terms: -12 + -72 = -84
-4x = -84

Divide each side by '-4'.
x = 21

Simplifying
x = 21

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