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The sum of twice a triangular number x and its subscript is 24. If their difference is 6, find x..


Triangular numbers are numbers of the form: 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91...

 
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jojo87 profile image60

jojo87 says

6 years ago
working