3(n-30)=40

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Solution for 3(n-30)=40 equation: 



3(n-30)=40

We move all terms to the left:

3(n-30)-(40)=0

We multiply parentheses

3n-90-40=0

We add all the numbers together, and all the variables

3n-130=0

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

3n=130

n=130/3

n=43+1/3

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