8x+9=x+31

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Solution for 8x+9=x+31 equation: 



8x+9=x+31

We move all terms to the left:

8x+9-(x+31)=0

We get rid of parentheses

8x-x-31+9=0

We add all the numbers together, and all the variables

7x-22=0

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

7x=22

x=22/7

x=3+1/7

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