-x+9+2x=18

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Solution for -x+9+2x=18 equation: 


Simplifying
-1x + 9 + 2x = 18

Reorder the terms:
9 + -1x + 2x = 18

Combine like terms: -1x + 2x = 1x
9 + 1x = 18

Solving
9 + 1x = 18

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 1x = 18 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 18 + -9
1x = 18 + -9

Combine like terms: 18 + -9 = 9
1x = 9

Divide each side by '1'.
x = 9

Simplifying
x = 9

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