7w+15+2w=20-w

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Solution for 7w+15+2w=20-w equation: 



7w+15+2w=20-w

We move all terms to the left:

7w+15+2w-(20-w)=0

We add all the numbers together, and all the variables

7w+2w-(-1w+20)+15=0

We add all the numbers together, and all the variables

9w-(-1w+20)+15=0

We get rid of parentheses

9w+1w-20+15=0

We add all the numbers together, and all the variables

10w-5=0

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

10w=5

w=5/10

w=1/2

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