6w-15=3w-21

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Solution for 6w-15=3w-21 equation: 



6w-15=3w-21

We move all terms to the left:

6w-15-(3w-21)=0

We get rid of parentheses

6w-3w+21-15=0

We add all the numbers together, and all the variables

3w+6=0

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

3w=-6

w=-6/3

w=-2

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