8x+39=9x+31

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Solution for 8x+39=9x+31 equation: 



8x+39=9x+31

We move all terms to the left:

8x+39-(9x+31)=0

We get rid of parentheses

8x-9x-31+39=0

We add all the numbers together, and all the variables

-1x+8=0

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

-x=-8

x=-8/-1

x=+8

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