3x+6x=72

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Solution for 3x+6x=72 equation: 


Simplifying
3x + 6x = 72

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

Solving
9x = 72

Solving for variable 'x'.

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

Divide each side by '9'.
x = 8

Simplifying
x = 8

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