21=12w-28

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Solution for 21=12w-28 equation: 



21=12w-28

We move all terms to the left:

21-(12w-28)=0

We get rid of parentheses

-12w+28+21=0

We add all the numbers together, and all the variables

-12w+49=0

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

-12w=-49

w=-49/-12

w=4+1/12

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