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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-4r+2r+8+2=0

We add all the numbers together, and all the variables

-2r+10=0

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

-2r=-10

r=-10/-2

r=+5

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