5.5-3(1+2.5r)=-20.5

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Solution for 5.5-3(1+2.5r)=-20.5 equation: 



5.5-3(1+2.5r)=-20.5

We move all terms to the left:

5.5-3(1+2.5r)-(-20.5)=0

We add all the numbers together, and all the variables

-3(2.5r+1)+5.5-(-20.5)=0

We add all the numbers together, and all the variables

-3(2.5r+1)+26=0

We multiply parentheses

-6r-3+26=0

We add all the numbers together, and all the variables

-6r+23=0

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

-6r=-23

r=-23/-6

r=3+5/6

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