1/7r=9

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Solution for 1/7r=9 equation: 



1/7r=9

We move all terms to the left:

1/7r-(9)=0



Domain of the equation: 7r!=0

r!=0/7

r!=0

r∈R



We multiply all the terms by the denominator


-9*7r+1=0

Wy multiply elements

-63r+1=0

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

-63r=-1

r=-1/-63

r=1/63

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