2/5*n-7=8

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Solution for 2/5*n-7=8 equation: 



2/5n-7=8

We move all terms to the left:

2/5n-7-(8)=0



Domain of the equation: 5n!=0

n!=0/5

n!=0

n∈R



We add all the numbers together, and all the variables

2/5n-15=0

We multiply all the terms by the denominator


-15*5n+2=0

Wy multiply elements

-75n+2=0

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

-75n=-2

n=-2/-75

n=2/75

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