21+5n=43+4n

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Solution for 21+5n=43+4n equation: 



21+5n=43+4n

We move all terms to the left:

21+5n-(43+4n)=0

We add all the numbers together, and all the variables

5n-(4n+43)+21=0

We get rid of parentheses

5n-4n-43+21=0

We add all the numbers together, and all the variables

n-22=0

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

n=22

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