3(4n+5)=75

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Solution for 3(4n+5)=75 equation: 



3(4n+5)=75

We move all terms to the left:

3(4n+5)-(75)=0

We multiply parentheses

12n+15-75=0

We add all the numbers together, and all the variables

12n-60=0

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

12n=60

n=60/12

n=5

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