21+3x=13x

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Solution for 21+3x=13x equation: 



21+3x=13x

We move all terms to the left:

21+3x-(13x)=0

We add all the numbers together, and all the variables

-10x+21=0

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

-10x=-21

x=-21/-10

x=2+1/10

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