9(2r+4)=-9(-4+10r)+10r

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Solution for 9(2r+4)=-9(-4+10r)+10r equation: 



9(2r+4)=-9(-4+10r)+10r

We move all terms to the left:

9(2r+4)-(-9(-4+10r)+10r)=0

We add all the numbers together, and all the variables

9(2r+4)-(-9(10r-4)+10r)=0

We multiply parentheses

18r-(-9(10r-4)+10r)+36=0



We calculate terms in parentheses: -(-9(10r-4)+10r), so:

-9(10r-4)+10r

We add all the numbers together, and all the variables

10r-9(10r-4)

We multiply parentheses

10r-90r+36

We add all the numbers together, and all the variables

-80r+36

Back to the equation:

-(-80r+36)



We get rid of parentheses

18r+80r-36+36=0

We add all the numbers together, and all the variables

98r=0

r=0/98

r=0

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