161=-7(7-5r)

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Solution for 161=-7(7-5r) equation: 



161=-7(7-5r)

We move all terms to the left:

161-(-7(7-5r))=0

We add all the numbers together, and all the variables

-(-7(-5r+7))+161=0



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

-7(-5r+7)

We multiply parentheses

35r-49

Back to the equation:

-(35r-49)



We get rid of parentheses

-35r+49+161=0

We add all the numbers together, and all the variables

-35r+210=0

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

-35r=-210

r=-210/-35

r=+6

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