72=2x+(x-9)

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Solution for 72=2x+(x-9) equation:


Simplifying
72 = 2x + (x + -9)

Reorder the terms:
72 = 2x + (-9 + x)

Remove parenthesis around (-9 + x)
72 = 2x + -9 + x

Reorder the terms:
72 = -9 + 2x + x

Combine like terms: 2x + x = 3x
72 = -9 + 3x

Solving
72 = -9 + 3x

Solving for variable 'x'.

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

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

Combine like terms: 3x + -3x = 0
72 + -3x = -9 + 0
72 + -3x = -9

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

Combine like terms: 72 + -72 = 0
0 + -3x = -9 + -72
-3x = -9 + -72

Combine like terms: -9 + -72 = -81
-3x = -81

Divide each side by '-3'.
x = 27

Simplifying
x = 27

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