5-5r=-9-7r

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Solution for 5-5r=-9-7r equation: 



5-5r=-9-7r

We move all terms to the left:

5-5r-(-9-7r)=0

We add all the numbers together, and all the variables

-5r-(-7r-9)+5=0

We get rid of parentheses

-5r+7r+9+5=0

We add all the numbers together, and all the variables

2r+14=0

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

2r=-14

r=-14/2

r=-7

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