r+10=-(r-4)

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Solution for r+10=-(r-4) equation: 



r+10=-(r-4)

We move all terms to the left:

r+10-(-(r-4))=0



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

-(r-4)

We get rid of parentheses

-r+4

We add all the numbers together, and all the variables

-1r+4

Back to the equation:

-(-1r+4)



We get rid of parentheses

r+1r-4+10=0

We add all the numbers together, and all the variables

2r+6=0

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

2r=-6

r=-6/2

r=-3

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