9r-4(3+r)=-10r

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Solution for 9r-4(3+r)=-10r equation: 



9r-4(3+r)=-10r

We move all terms to the left:

9r-4(3+r)-(-10r)=0

We add all the numbers together, and all the variables

9r-4(r+3)-(-10r)=0

We multiply parentheses

9r-4r-(-10r)-12=0

We get rid of parentheses

9r-4r+10r-12=0

We add all the numbers together, and all the variables

15r-12=0

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

15r=12

r=12/15

r=4/5

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