4/5n+7=9

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Solution for 4/5n+7=9 equation: 



4/5n+7=9

We move all terms to the left:

4/5n+7-(9)=0



Domain of the equation: 5n!=0

n!=0/5

n!=0

n∈R



We add all the numbers together, and all the variables

4/5n-2=0

We multiply all the terms by the denominator


-2*5n+4=0

Wy multiply elements

-10n+4=0

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

-10n=-4

n=-4/-10

n=2/5

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