15+7.7n=12+7.9n

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Solution for 15+7.7n=12+7.9n equation: 



15+7.7n=12+7.9n

We move all terms to the left:

15+7.7n-(12+7.9n)=0

We add all the numbers together, and all the variables

7.7n-(7.9n+12)+15=0

We get rid of parentheses

7.7n-7.9n-12+15=0

We add all the numbers together, and all the variables

-0.2n+3=0

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

-0.2n=-3

n=-3/-0.2

n=+15

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