21+2.5w=6+5.7w-3,

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Solution for 21+2.5w=6+5.7w-3, equation: 



21+2.5w=6+5.7w-3.

We move all terms to the left:

21+2.5w-(6+5.7w-3.)=0

We add all the numbers together, and all the variables

2.5w-(5.7w+3)+21=0

We get rid of parentheses

2.5w-5.7w-3+21=0

We add all the numbers together, and all the variables

-3.2w+18=0

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

-3.2w=-18

w=-18/-3.2

w=5+2/3.2

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