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KiRa [710]
3 years ago
10

The difference of 3 times a number and 18 is 39. what is the number?

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0
The number is 7(Seven).
Ber [7]3 years ago
4 0
Just set up an equation, with "x" being the unknown number.
3x-18=39
3x=57
x=19.
The unknown number is 19.
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