4w-9=21

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Solution for 4w-9=21 equation: 



4w-9=21

We move all terms to the left:

4w-9-(21)=0

We add all the numbers together, and all the variables

4w-30=0

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

4w=30

w=30/4

w=7+1/2

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