n-21/4=0

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Solution for n-21/4=0 equation: 



n-21/4=0

We multiply all the terms by the denominator


n*4-21=0

Wy multiply elements

4n-21=0

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

4n=21

n=21/4

n=5+1/4

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