r+9/4=-1

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Solution for r+9/4=-1 equation: 



r+9/4=-1

We move all terms to the left:

r+9/4-(-1)=0

We add all the numbers together, and all the variables

r+1+9/4=0

We multiply all the terms by the denominator


r*4+9+1*4=0

We add all the numbers together, and all the variables

r*4+13=0

Wy multiply elements

4r+13=0

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

4r=-13

r=-13/4

r=-3+1/4

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