1x+9=18-2x

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Solution for 1x+9=18-2x equation: 



1x+9=18-2x

We move all terms to the left:

1x+9-(18-2x)=0

We add all the numbers together, and all the variables

1x-(-2x+18)+9=0

We add all the numbers together, and all the variables

x-(-2x+18)+9=0

We get rid of parentheses

x+2x-18+9=0

We add all the numbers together, and all the variables

3x-9=0

We move all terms containing x to the left, all other terms to the right

3x=9

x=9/3

x=3

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