x+9=18+2x

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


Simplifying
x + 9 = 18 + 2x

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

Solving
9 + x = 18 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
9 + x + -2x = 18 + 2x + -2x

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

Combine like terms: 2x + -2x = 0
9 + -1x = 18 + 0
9 + -1x = 18

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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