2r=-4/9

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Solution for 2r=-4/9 equation: 



2r=-4/9

We move all terms to the left:

2r-(-4/9)=0

We get rid of parentheses

2r+4/9=0

We multiply all the terms by the denominator


2r*9+4=0

Wy multiply elements

18r+4=0

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

18r=-4

r=-4/18

r=-2/9

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