5(1-r)-4(1-7r)=1

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Solution for 5(1-r)-4(1-7r)=1 equation: 



5(1-r)-4(1-7r)=1

We move all terms to the left:

5(1-r)-4(1-7r)-(1)=0

We add all the numbers together, and all the variables

5(-1r+1)-4(-7r+1)-1=0

We multiply parentheses

-5r+28r+5-4-1=0

We add all the numbers together, and all the variables

23r=0

r=0/23

r=0

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