13+2x=20+x

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Solution for 13+2x=20+x equation: 



13+2x=20+x

We move all terms to the left:

13+2x-(20+x)=0

We add all the numbers together, and all the variables

2x-(x+20)+13=0

We get rid of parentheses

2x-x-20+13=0

We add all the numbers together, and all the variables

x-7=0

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

x=7

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