21+2w=30

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Solution for 21+2w=30 equation: 



21+2w=30

We move all terms to the left:

21+2w-(30)=0

We add all the numbers together, and all the variables

2w-9=0

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

2w=9

w=9/2

w=4+1/2

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