1/5r+2=7

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Solution for 1/5r+2=7 equation: 



1/5r+2=7

We move all terms to the left:

1/5r+2-(7)=0



Domain of the equation: 5r!=0

r!=0/5

r!=0

r∈R



We add all the numbers together, and all the variables

1/5r-5=0

We multiply all the terms by the denominator


-5*5r+1=0

Wy multiply elements

-25r+1=0

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

-25r=-1

r=-1/-25

r=1/25

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