31-9x=-89-x

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Solution for 31-9x=-89-x equation: 



31-9x=-89-x

We move all terms to the left:

31-9x-(-89-x)=0

We add all the numbers together, and all the variables

-9x-(-1x-89)+31=0

We get rid of parentheses

-9x+1x+89+31=0

We add all the numbers together, and all the variables

-8x+120=0

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

-8x=-120

x=-120/-8

x=+15

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