10n+6=7n+21+2n

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Solution for 10n+6=7n+21+2n equation: 



10n+6=7n+21+2n

We move all terms to the left:

10n+6-(7n+21+2n)=0

We add all the numbers together, and all the variables

10n-(9n+21)+6=0

We get rid of parentheses

10n-9n-21+6=0

We add all the numbers together, and all the variables

n-15=0

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

n=15

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