115=7-4(-7+5x)

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Solution for 115=7-4(-7+5x) equation: 



115=7-4(-7+5x)

We move all terms to the left:

115-(7-4(-7+5x))=0

We add all the numbers together, and all the variables

-(7-4(5x-7))+115=0



We calculate terms in parentheses: -(7-4(5x-7)), so:

7-4(5x-7)

determiningTheFunctionDomain
-4(5x-7)+7

We multiply parentheses

-20x+28+7

We add all the numbers together, and all the variables

-20x+35

Back to the equation:

-(-20x+35)



We get rid of parentheses

20x-35+115=0

We add all the numbers together, and all the variables

20x+80=0

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

20x=-80

x=-80/20

x=-4

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