13-x=3x-7

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Solution for 13-x=3x-7 equation: 



13-x=3x-7

We move all terms to the left:

13-x-(3x-7)=0

We add all the numbers together, and all the variables

-1x-(3x-7)+13=0

We get rid of parentheses

-1x-3x+7+13=0

We add all the numbers together, and all the variables

-4x+20=0

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

-4x=-20

x=-20/-4

x=+5

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