x+2x+6x=144

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Solution for x+2x+6x=144 equation: 


Simplifying
x + 2x + 6x = 144

Combine like terms: x + 2x = 3x
3x + 6x = 144

Combine like terms: 3x + 6x = 9x
9x = 144

Solving
9x = 144

Solving for variable 'x'.

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

Divide each side by '9'.
x = 16

Simplifying
x = 16

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