7-3r=2r-4(2-r)

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



7-3r=2r-4(2-r)

We move all terms to the left:

7-3r-(2r-4(2-r))=0

We add all the numbers together, and all the variables

-3r-(2r-4(-1r+2))+7=0



We calculate terms in parentheses: -(2r-4(-1r+2)), so:

2r-4(-1r+2)

We multiply parentheses

2r+4r-8

We add all the numbers together, and all the variables

6r-8

Back to the equation:

-(6r-8)



We get rid of parentheses

-3r-6r+8+7=0

We add all the numbers together, and all the variables

-9r+15=0

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

-9r=-15

r=-15/-9

r=1+2/3

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