5=-2(r-1)

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Solution for 5=-2(r-1) equation: 



5=-2(r-1)

We move all terms to the left:

5-(-2(r-1))=0



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

-2(r-1)

We multiply parentheses

-2r+2

Back to the equation:

-(-2r+2)



We get rid of parentheses

2r-2+5=0

We add all the numbers together, and all the variables

2r+3=0

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

2r=-3

r=-3/2

r=-1+1/2

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