3n+1.2=(-4)n-0.9

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Solution for 3n+1.2=(-4)n-0.9 equation: 



3n+1.2=(-4)n-0.9

We move all terms to the left:

3n+1.2-((-4)n-0.9)=0



We calculate terms in parentheses: -((-4)n-0.9), so:

(-4)n-0.9

We multiply parentheses

-4n-0.9

Back to the equation:

-(-4n-0.9)



We get rid of parentheses

3n+4n+0.9+1.2=0

We add all the numbers together, and all the variables

7n+2.1=0

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

7n=-2.1

n=-2.1/7

n=-2.1/7

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