9r-3(r+5)=4(3r-6)-15

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Solution for 9r-3(r+5)=4(3r-6)-15 equation: 



9r-3(r+5)=4(3r-6)-15

We move all terms to the left:

9r-3(r+5)-(4(3r-6)-15)=0

We multiply parentheses

9r-3r-(4(3r-6)-15)-15=0



We calculate terms in parentheses: -(4(3r-6)-15), so:

4(3r-6)-15

We multiply parentheses

12r-24-15

We add all the numbers together, and all the variables

12r-39

Back to the equation:

-(12r-39)



We add all the numbers together, and all the variables

6r-(12r-39)-15=0

We get rid of parentheses

6r-12r+39-15=0

We add all the numbers together, and all the variables

-6r+24=0

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

-6r=-24

r=-24/-6

r=+4

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