7+12r+2(2r-1)=2(2r+1)

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Solution for 7+12r+2(2r-1)=2(2r+1) equation: 



7+12r+2(2r-1)=2(2r+1)

We move all terms to the left:

7+12r+2(2r-1)-(2(2r+1))=0

We multiply parentheses

12r+4r-(2(2r+1))-2+7=0



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

2(2r+1)

We multiply parentheses

4r+2

Back to the equation:

-(4r+2)



We add all the numbers together, and all the variables

16r-(4r+2)+5=0

We get rid of parentheses

16r-4r-2+5=0

We add all the numbers together, and all the variables

12r+3=0

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

12r=-3

r=-3/12

r=-1/4

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