3(w-1)=21

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Solution for 3(w-1)=21 equation: 



3(w-1)=21

We move all terms to the left:

3(w-1)-(21)=0

We multiply parentheses

3w-3-21=0

We add all the numbers together, and all the variables

3w-24=0

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

3w=24

w=24/3

w=8

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