56=21+w

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Solution for 56=21+w equation: 



56=21+w

We move all terms to the left:

56-(21+w)=0

We add all the numbers together, and all the variables

-(w+21)+56=0

We get rid of parentheses

-w-21+56=0

We add all the numbers together, and all the variables

-1w+35=0

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

-w=-35

w=-35/-1

w=+35

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