5(r-1)=4r

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



5(r-1)=4r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-4r+5r-5=0

We add all the numbers together, and all the variables

r-5=0

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

r=5

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