4(5n+)=140

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Solution for 4(5n+)=140 equation: 



4(5n+)=140

We move all terms to the left:

4(5n+)-(140)=0

We add all the numbers together, and all the variables

4(+5n)-140=0

We multiply parentheses

20n-140=0

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

20n=140

n=140/20

n=7

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