r+1/2=4.5

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Solution for r+1/2=4.5 equation: 



r+1/2=4.5

We move all terms to the left:

r+1/2-(4.5)=0

We add all the numbers together, and all the variables

r-4.5+1/2=0

We multiply all the terms by the denominator


r*2+1-(4.5)*2=0

We add all the numbers together, and all the variables

r*2-8=0

Wy multiply elements

2r-8=0

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

2r=8

r=8/2

r=4

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