r(-1.5)=-3.0

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Solution for r(-1.5)=-3.0 equation: 



r(-1.5)=-3.0

We move all terms to the left:

r(-1.5)-(-3.0)=0

We add all the numbers together, and all the variables

r(-1.5)-(-3)=0

We add all the numbers together, and all the variables

r(-1.5)+3=0

We multiply parentheses

-1.5r+3=0

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

-1.5r=-3

r=-3/-1.5

r=+2

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