21x-1=8x+7

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Solution for 21x-1=8x+7 equation: 



21x-1=8x+7

We move all terms to the left:

21x-1-(8x+7)=0

We get rid of parentheses

21x-8x-7-1=0

We add all the numbers together, and all the variables

13x-8=0

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

13x=8

x=8/13

x=8/13

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