11x-21=x+7

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Solution for 11x-21=x+7 equation: 



11x-21=x+7

We move all terms to the left:

11x-21-(x+7)=0

We get rid of parentheses

11x-x-7-21=0

We add all the numbers together, and all the variables

10x-28=0

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

10x=28

x=28/10

x=2+4/5

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