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Sagot :
9514 1404 393
Answer:
7, 16, 17
Step-by-step explanation:
The sum of the lengths of the three sides is the perimeter:
(n) +(3n -5) +(3n -4) = 40
7n -9 = 40 . . . . . . . . . . . . . . collect terms
7n = 49 . . . . . . . . . . . add 9
n = 7 . . . . . . . . . divide by 7
Then the side lengths are ...
n = 7
3n -5 = 16
3n -4 = 17
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