3(5-2r)=-3-9r

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Solution for 3(5-2r)=-3-9r equation: 



3(5-2r)=-3-9r

We move all terms to the left:

3(5-2r)-(-3-9r)=0

We add all the numbers together, and all the variables

3(-2r+5)-(-9r-3)=0

We multiply parentheses

-6r-(-9r-3)+15=0

We get rid of parentheses

-6r+9r+3+15=0

We add all the numbers together, and all the variables

3r+18=0

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

3r=-18

r=-18/3

r=-6

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