-161=-7(4+r)

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Solution for -161=-7(4+r) equation:



-161=-7(4+r)
We move all terms to the left:
-161-(-7(4+r))=0
We add all the numbers together, and all the variables
-(-7(r+4))-161=0
We calculate terms in parentheses: -(-7(r+4)), so:
-7(r+4)
We multiply parentheses
-7r-28
Back to the equation:
-(-7r-28)
We get rid of parentheses
7r+28-161=0
We add all the numbers together, and all the variables
7r-133=0
We move all terms containing r to the left, all other terms to the right
7r=133
r=133/7
r=19

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