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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