-98=5r+3(2+7r)

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Solution for -98=5r+3(2+7r) equation: 



-98=5r+3(2+7r)

We move all terms to the left:

-98-(5r+3(2+7r))=0

We add all the numbers together, and all the variables

-(5r+3(7r+2))-98=0



We calculate terms in parentheses: -(5r+3(7r+2)), so:

5r+3(7r+2)

We multiply parentheses

5r+21r+6

We add all the numbers together, and all the variables

26r+6

Back to the equation:

-(26r+6)



We get rid of parentheses

-26r-6-98=0

We add all the numbers together, and all the variables

-26r-104=0

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

-26r=104

r=104/-26

r=-4

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