31=-42+-7x+17

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Solution for 31=-42+-7x+17 equation: 



31=-42+-7x+17

We move all terms to the left:

31-(-42+-7x+17)=0

We add all the numbers together, and all the variables

-(-7x)+31=0

We get rid of parentheses

7x+31=0

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

7x=-31

x=-31/7

x=-4+3/7

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