3w=-4w-21

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Solution for 3w=-4w-21 equation: 



3w=-4w-21

We move all terms to the left:

3w-(-4w-21)=0

We get rid of parentheses

3w+4w+21=0

We add all the numbers together, and all the variables

7w+21=0

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

7w=-21

w=-21/7

w=-3

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