10(16.5+1.5r)=10(12+2r)

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Solution for 10(16.5+1.5r)=10(12+2r) equation: 



10(16.5+1.5r)=10(12+2r)

We move all terms to the left:

10(16.5+1.5r)-(10(12+2r))=0

We add all the numbers together, and all the variables

10(1.5r+16.5)-(10(2r+12))=0

We multiply parentheses

10r-(10(2r+12))+165=0



We calculate terms in parentheses: -(10(2r+12)), so:

10(2r+12)

We multiply parentheses

20r+120

Back to the equation:

-(20r+120)



We get rid of parentheses

10r-20r-120+165=0

We add all the numbers together, and all the variables

-10r+45=0

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

-10r=-45

r=-45/-10

r=4+1/2

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