x-2x+3x=18

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Solution for x-2x+3x=18 equation: 


Simplifying
x + -2x + 3x = 18

Combine like terms: x + -2x = -1x
-1x + 3x = 18

Combine like terms: -1x + 3x = 2x
2x = 18

Solving
2x = 18

Solving for variable 'x'.

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

Divide each side by '2'.
x = 9

Simplifying
x = 9

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