A=90-(2x-4)

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Solution for A=90-(2x-4) equation: 



=90-(2A-4)

We move all terms to the left:

-(90-(2A-4))=0



We calculate terms in parentheses: -(90-(2A-4)), so:

90-(2A-4)

determiningTheFunctionDomain
-(2A-4)+90

We get rid of parentheses

-2A+4+90

We add all the numbers together, and all the variables

-2A+94

Back to the equation:

-(-2A+94)



We get rid of parentheses

2A-94=0

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

2A=94

A=94/2

A=47

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