3w+7=w+15

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



3w+7=w+15

We move all terms to the left:

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

We get rid of parentheses

3w-w-15+7=0

We add all the numbers together, and all the variables

2w-8=0

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

2w=8

w=8/2

w=4

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