90=1,500+r+2

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Solution for 90=1,500+r+2 equation: 



90=1.500+r+2

We move all terms to the left:

90-(1.500+r+2)=0

We add all the numbers together, and all the variables

-(r+3.5)+90=0

We get rid of parentheses

-r-3.5+90=0

We add all the numbers together, and all the variables

-1r+86.5=0

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

-r=-86.5

r=-86.5/-1

r=86+0.5/1

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