Answers

2016-01-15T00:58:09+08:00
Let x be the number and 3x is thrice the number. So:
3x - 9 = 100
3x = 100 + 9
3x = 109
x = 109/3 or 36 1/3
Therefore, the number is 109/3 or 36 1/3. (If that's what you're asking for.)
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2016-01-15T15:35:16+08:00
3x-9=100
3x=100+9
3x=109
3x/3=109/3
x= 36+ 1/3
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