7(3n+5)=3(3n-15)

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Solution for 7(3n+5)=3(3n-15) equation: 



7(3n+5)=3(3n-15)

We move all terms to the left:

7(3n+5)-(3(3n-15))=0

We multiply parentheses

21n-(3(3n-15))+35=0



We calculate terms in parentheses: -(3(3n-15)), so:

3(3n-15)

We multiply parentheses

9n-45

Back to the equation:

-(9n-45)



We get rid of parentheses

21n-9n+45+35=0

We add all the numbers together, and all the variables

12n+80=0

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

12n=-80

n=-80/12

n=-6+2/3

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