r=9/2

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Solution for r=9/2 equation: 



r=9/2

We move all terms to the left:

r-(9/2)=0

We add all the numbers together, and all the variables

r-(+9/2)=0

We get rid of parentheses

r-9/2=0

We multiply all the terms by the denominator


r*2-9=0

Wy multiply elements

2r-9=0

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

2r=9

r=9/2

r=4+1/2

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