-8=-(r+2)+-4

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Solution for -8=-(r+2)+-4 equation: 



-8=-(r+2)+-4

We move all terms to the left:

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

We use the square of the difference formula

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



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

-(r+2)-4

We get rid of parentheses

-r-2-4

We add all the numbers together, and all the variables

-1r-6

Back to the equation:

-(-1r-6)



We get rid of parentheses

1r+6-8=0

We add all the numbers together, and all the variables

r-2=0

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

r=2

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