3x-9=8-x

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Solution for 3x-9=8-x equation: 



3x-9=8-x

We move all terms to the left:

3x-9-(8-x)=0

We add all the numbers together, and all the variables

3x-(-1x+8)-9=0

We get rid of parentheses

3x+1x-8-9=0

We add all the numbers together, and all the variables

4x-17=0

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

4x=17

x=17/4

x=4+1/4

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