3(4+5n)=72

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Solution for 3(4+5n)=72 equation: 



3(4+5n)=72

We move all terms to the left:

3(4+5n)-(72)=0

We add all the numbers together, and all the variables

3(5n+4)-72=0

We multiply parentheses

15n+12-72=0

We add all the numbers together, and all the variables

15n-60=0

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

15n=60

n=60/15

n=4

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