21x-13=10x-31

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Solution for 21x-13=10x-31 equation: 



21x-13=10x-31

We move all terms to the left:

21x-13-(10x-31)=0

We get rid of parentheses

21x-10x+31-13=0

We add all the numbers together, and all the variables

11x+18=0

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

11x=-18

x=-18/11

x=-1+7/11

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