3x+72-x=11x+9

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Solution for 3x+72-x=11x+9 equation:


Simplifying
3x + 72 + -1x = 11x + 9

Reorder the terms:
72 + 3x + -1x = 11x + 9

Combine like terms: 3x + -1x = 2x
72 + 2x = 11x + 9

Reorder the terms:
72 + 2x = 9 + 11x

Solving
72 + 2x = 9 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
72 + 2x + -11x = 9 + 11x + -11x

Combine like terms: 2x + -11x = -9x
72 + -9x = 9 + 11x + -11x

Combine like terms: 11x + -11x = 0
72 + -9x = 9 + 0
72 + -9x = 9

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

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

Combine like terms: 9 + -72 = -63
-9x = -63

Divide each side by '-9'.
x = 7

Simplifying
x = 7

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