2w-21=w-3

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Solution for 2w-21=w-3 equation: 



2w-21=w-3

We move all terms to the left:

2w-21-(w-3)=0

We get rid of parentheses

2w-w+3-21=0

We add all the numbers together, and all the variables

w-18=0

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

w=18

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