7x+31=8x-9x-1

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Solution for 7x+31=8x-9x-1 equation: 



7x+31=8x-9x-1

We move all terms to the left:

7x+31-(8x-9x-1)=0

We add all the numbers together, and all the variables

7x-(-1x-1)+31=0

We get rid of parentheses

7x+1x+1+31=0

We add all the numbers together, and all the variables

8x+32=0

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

8x=-32

x=-32/8

x=-4

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