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

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



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

We move all terms to the left:

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



We calculate terms in parentheses: -(-2(r-4)+5), so:

-2(r-4)+5

We multiply parentheses

-2r+8+5

We add all the numbers together, and all the variables

-2r+13

Back to the equation:

-(-2r+13)



We get rid of parentheses

2r-13-3=0

We add all the numbers together, and all the variables

2r-16=0

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

2r=16

r=16/2

r=8

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