w=(21-15)/2

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Solution for w=(21-15)/2 equation: 



w=(21-15)/2

We move all terms to the left:

w-((21-15)/2)=0

We add all the numbers together, and all the variables

w-(6/2)=0

We get rid of parentheses

w-6/2=0

We multiply all the terms by the denominator


w*2-6=0

Wy multiply elements

2w-6=0

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

2w=6

w=6/2

w=3

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