8(2r+1)1=-9

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Solution for 8(2r+1)1=-9 equation: 



8(2r+1)1=-9

We move all terms to the left:

8(2r+1)1-(-9)=0

We add all the numbers together, and all the variables

8(2r+1)1+9=0

We multiply parentheses

16r+8+9=0

We add all the numbers together, and all the variables

16r+17=0

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

16r=-17

r=-17/16

r=-1+1/16

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