8=r+(-10)

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Solution for 8=r+(-10) equation: 



8=r+(-10)

We move all terms to the left:

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



We calculate terms in parentheses: -(r+(-10)), so:

r+(-10)

We add all the numbers together, and all the variables

r-10

Back to the equation:

-(r-10)



We get rid of parentheses

-r+10+8=0

We add all the numbers together, and all the variables

-1r+18=0

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

-r=-18

r=-18/-1

r=+18

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