21+24n=42+17n

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Solution for 21+24n=42+17n equation: 



21+24n=42+17n

We move all terms to the left:

21+24n-(42+17n)=0

We add all the numbers together, and all the variables

24n-(17n+42)+21=0

We get rid of parentheses

24n-17n-42+21=0

We add all the numbers together, and all the variables

7n-21=0

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

7n=21

n=21/7

n=3

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