20-9w=4+(15-w)

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Solution for 20-9w=4+(15-w) equation: 



20-9w=4+(15-w)

We move all terms to the left:

20-9w-(4+(15-w))=0

We add all the numbers together, and all the variables

-9w-(4+(-1w+15))+20=0



We calculate terms in parentheses: -(4+(-1w+15)), so:

4+(-1w+15)

determiningTheFunctionDomain
(-1w+15)+4

We get rid of parentheses

-1w+15+4

We add all the numbers together, and all the variables

-1w+19

Back to the equation:

-(-1w+19)



We get rid of parentheses

-9w+1w-19+20=0

We add all the numbers together, and all the variables

-8w+1=0

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

-8w=-1

w=-1/-8

w=1/8

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