8r-19=90

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Solution for 8r-19=90 equation: 



8r-19=90

We move all terms to the left:

8r-19-(90)=0

We add all the numbers together, and all the variables

8r-109=0

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

8r=109

r=109/8

r=13+5/8

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