-4=4(-2r+1)

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Solution for -4=4(-2r+1) equation: 



-4=4(-2r+1)

We move all terms to the left:

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



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

4(-2r+1)

We multiply parentheses

-8r+4

Back to the equation:

-(-8r+4)



We get rid of parentheses

8r-4-4=0

We add all the numbers together, and all the variables

8r-8=0

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

8r=8

r=8/8

r=1

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