9(x-30)-3(x+90)=120-9(x-90)

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Solution for 9(x-30)-3(x+90)=120-9(x-90) equation: 



9(x-30)-3(x+90)=120-9(x-90)

We move all terms to the left:

9(x-30)-3(x+90)-(120-9(x-90))=0

We multiply parentheses

9x-3x-(120-9(x-90))-270-270=0



We calculate terms in parentheses: -(120-9(x-90)), so:

120-9(x-90)

determiningTheFunctionDomain
-9(x-90)+120

We multiply parentheses

-9x+810+120

We add all the numbers together, and all the variables

-9x+930

Back to the equation:

-(-9x+930)



We add all the numbers together, and all the variables

6x-(-9x+930)-540=0

We get rid of parentheses

6x+9x-930-540=0

We add all the numbers together, and all the variables

15x-1470=0

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

15x=1470

x=1470/15

x=98

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