159=7-4(4+6a)

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Solution for 159=7-4(4+6a) equation: 



159=7-4(4+6a)

We move all terms to the left:

159-(7-4(4+6a))=0

We add all the numbers together, and all the variables

-(7-4(6a+4))+159=0



We calculate terms in parentheses: -(7-4(6a+4)), so:

7-4(6a+4)

determiningTheFunctionDomain
-4(6a+4)+7

We multiply parentheses

-24a-16+7

We add all the numbers together, and all the variables

-24a-9

Back to the equation:

-(-24a-9)



We get rid of parentheses

24a+9+159=0

We add all the numbers together, and all the variables

24a+168=0

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

24a=-168

a=-168/24

a=-7

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