1/4r=9+3

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Solution for 1/4r=9+3 equation: 



1/4r=9+3

We move all terms to the left:

1/4r-(9+3)=0



Domain of the equation: 4r!=0

r!=0/4

r!=0

r∈R



We add all the numbers together, and all the variables

1/4r-12=0

We multiply all the terms by the denominator


-12*4r+1=0

Wy multiply elements

-48r+1=0

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

-48r=-1

r=-1/-48

r=1/48

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