90=(15-43)+(8x+13)

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Solution for 90=(15-43)+(8x+13) equation: 



90=(15-43)+(8x+13)

We move all terms to the left:

90-((15-43)+(8x+13))=0

We add all the numbers together, and all the variables

-((-28)+(8x+13))+90=0



We calculate terms in parentheses: -((-28)+(8x+13)), so:

(-28)+(8x+13)

determiningTheFunctionDomain
(8x+13)+(-28)

We add all the numbers together, and all the variables

(8x+13)-28

We get rid of parentheses

8x+13-28

We add all the numbers together, and all the variables

8x-15

Back to the equation:

-(8x-15)



We get rid of parentheses

-8x+15+90=0

We add all the numbers together, and all the variables

-8x+105=0

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

-8x=-105

x=-105/-8

x=13+1/8

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