7-4+5r=2(3r+6)

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Solution for 7-4+5r=2(3r+6) equation: 



7-4+5r=2(3r+6)

We move all terms to the left:

7-4+5r-(2(3r+6))=0

We add all the numbers together, and all the variables

5r-(2(3r+6))+3=0



We calculate terms in parentheses: -(2(3r+6)), so:

2(3r+6)

We multiply parentheses

6r+12

Back to the equation:

-(6r+12)



We get rid of parentheses

5r-6r-12+3=0

We add all the numbers together, and all the variables

-1r-9=0

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

-r=9

r=9/-1

r=-9

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