100=10(r-86)

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Solution for 100=10(r-86) equation: 



100=10(r-86)

We move all terms to the left:

100-(10(r-86))=0



We calculate terms in parentheses: -(10(r-86)), so:

10(r-86)

We multiply parentheses

10r-860

Back to the equation:

-(10r-860)



We get rid of parentheses

-10r+860+100=0

We add all the numbers together, and all the variables

-10r+960=0

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

-10r=-960

r=-960/-10

r=+96

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