31-47=-2x+7x-4x

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Solution for 31-47=-2x+7x-4x equation: 



31-47=-2x+7x-4x

We move all terms to the left:

31-47-(-2x+7x-4x)=0

We add all the numbers together, and all the variables

-(+x)+31-47=0

We add all the numbers together, and all the variables

-(+x)-16=0

We get rid of parentheses

-x-16=0

We add all the numbers together, and all the variables

-1x-16=0

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

-x=16

x=16/-1

x=-16

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