-81=3-7(2-5x)

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Solution for -81=3-7(2-5x) equation: 



-81=3-7(2-5x)

We move all terms to the left:

-81-(3-7(2-5x))=0

We add all the numbers together, and all the variables

-(3-7(-5x+2))-81=0



We calculate terms in parentheses: -(3-7(-5x+2)), so:

3-7(-5x+2)

determiningTheFunctionDomain
-7(-5x+2)+3

We multiply parentheses

35x-14+3

We add all the numbers together, and all the variables

35x-11

Back to the equation:

-(35x-11)



We get rid of parentheses

-35x+11-81=0

We add all the numbers together, and all the variables

-35x-70=0

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

-35x=70

x=70/-35

x=-2

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