-9=-2r+-5

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Solution for -9=-2r+-5 equation: 



-9=-2r+-5

We move all terms to the left:

-9-(-2r+-5)=0

We add all the numbers together, and all the variables

-(-2r-5)-9=0

We get rid of parentheses

2r+5-9=0

We add all the numbers together, and all the variables

2r-4=0

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

2r=4

r=4/2

r=2

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