-r=2(-r+2)

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



-r=2(-r+2)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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



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

2(-1r+2)

We multiply parentheses

-2r+4

Back to the equation:

-(-2r+4)



We get rid of parentheses

-1r+2r-4=0

We add all the numbers together, and all the variables

r-4=0

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

r=4

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