n/21=105/15

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Solution for n/21=105/15 equation: 



n/21=105/15

We move all terms to the left:

n/21-(105/15)=0

We add all the numbers together, and all the variables

n/21-7=0

We multiply all the terms by the denominator


n-7*21=0

We add all the numbers together, and all the variables

n-147=0

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

n=147

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