90=4(5-3n)-2

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Solution for 90=4(5-3n)-2 equation: 



90=4(5-3n)-2

We move all terms to the left:

90-(4(5-3n)-2)=0

We add all the numbers together, and all the variables

-(4(-3n+5)-2)+90=0



We calculate terms in parentheses: -(4(-3n+5)-2), so:

4(-3n+5)-2

We multiply parentheses

-12n+20-2

We add all the numbers together, and all the variables

-12n+18

Back to the equation:

-(-12n+18)



We get rid of parentheses

12n-18+90=0

We add all the numbers together, and all the variables

12n+72=0

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

12n=-72

n=-72/12

n=-6

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