15=30-7(-3-4w)

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Solution for 15=30-7(-3-4w) equation: 



15=30-7(-3-4w)

We move all terms to the left:

15-(30-7(-3-4w))=0

We add all the numbers together, and all the variables

-(30-7(-4w-3))+15=0



We calculate terms in parentheses: -(30-7(-4w-3)), so:

30-7(-4w-3)

determiningTheFunctionDomain
-7(-4w-3)+30

We multiply parentheses

28w+21+30

We add all the numbers together, and all the variables

28w+51

Back to the equation:

-(28w+51)



We get rid of parentheses

-28w-51+15=0

We add all the numbers together, and all the variables

-28w-36=0

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

-28w=36

w=36/-28

w=-1+2/7

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