3x+72=9x+120

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Solution for 3x+72=9x+120 equation:


Simplifying
3x + 72 = 9x + 120

Reorder the terms:
72 + 3x = 9x + 120

Reorder the terms:
72 + 3x = 120 + 9x

Solving
72 + 3x = 120 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
72 + 3x + -9x = 120 + 9x + -9x

Combine like terms: 3x + -9x = -6x
72 + -6x = 120 + 9x + -9x

Combine like terms: 9x + -9x = 0
72 + -6x = 120 + 0
72 + -6x = 120

Add '-72' to each side of the equation.
72 + -72 + -6x = 120 + -72

Combine like terms: 72 + -72 = 0
0 + -6x = 120 + -72
-6x = 120 + -72

Combine like terms: 120 + -72 = 48
-6x = 48

Divide each side by '-6'.
x = -8

Simplifying
x = -8

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