-3(3r+5)=2(10-r)

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Solution for -3(3r+5)=2(10-r) equation: 



-3(3r+5)=2(10-r)

We move all terms to the left:

-3(3r+5)-(2(10-r))=0

We add all the numbers together, and all the variables

-3(3r+5)-(2(-1r+10))=0

We multiply parentheses

-9r-(2(-1r+10))-15=0



We calculate terms in parentheses: -(2(-1r+10)), so:

2(-1r+10)

We multiply parentheses

-2r+20

Back to the equation:

-(-2r+20)



We get rid of parentheses

-9r+2r-20-15=0

We add all the numbers together, and all the variables

-7r-35=0

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

-7r=35

r=35/-7

r=-5

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