31-4x=20+7x

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Solution for 31-4x=20+7x equation: 



31-4x=20+7x

We move all terms to the left:

31-4x-(20+7x)=0

We add all the numbers together, and all the variables

-4x-(7x+20)+31=0

We get rid of parentheses

-4x-7x-20+31=0

We add all the numbers together, and all the variables

-11x+11=0

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

-11x=-11

x=-11/-11

x=1

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