3n+1.2=-4n

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Solution for 3n+1.2=-4n equation: 



3n+1.2=-4n

We move all terms to the left:

3n+1.2-(-4n)=0

We get rid of parentheses

3n+4n+1.2=0

We add all the numbers together, and all the variables

7n+1.2=0

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

7n=-1.2

n=-1.2/7

n=-1/5.8333333333333

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