4/5=1-r

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Solution for 4/5=1-r equation: 



4/5=1-r

We move all terms to the left:

4/5-(1-r)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

1r-1+4/5=0

We multiply all the terms by the denominator


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

We add all the numbers together, and all the variables

1r*5-1=0

Wy multiply elements

5r-1=0

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

5r=1

r=1/5

r=1/5

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