3w-5=7w+15

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Solution for 3w-5=7w+15 equation: 



3w-5=7w+15

We move all terms to the left:

3w-5-(7w+15)=0

We get rid of parentheses

3w-7w-15-5=0

We add all the numbers together, and all the variables

-4w-20=0

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

-4w=20

w=20/-4

w=-5

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