21w+21=7w+49

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Solution for 21w+21=7w+49 equation: 



21w+21=7w+49

We move all terms to the left:

21w+21-(7w+49)=0

We get rid of parentheses

21w-7w-49+21=0

We add all the numbers together, and all the variables

14w-28=0

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

14w=28

w=28/14

w=2

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