A number, x, decreased by the sum of 2x and 5 Please show work!!!!!! Thank you!!!!

1 answer:

3 0

The number is 3 times the sum of its digits

45 is added = 4+5=9 so,a common numbers in 3rd and 9th table
9,18,27,36,45...

27+45=72

2+7=9
or
<span>4+5=9</span>

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