10+2n+7=3n+21

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Solution for 10+2n+7=3n+21 equation: 



10+2n+7=3n+21

We move all terms to the left:

10+2n+7-(3n+21)=0

We add all the numbers together, and all the variables

2n-(3n+21)+17=0

We get rid of parentheses

2n-3n-21+17=0

We add all the numbers together, and all the variables

-1n-4=0

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

-n=4

n=4/-1

n=-4

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