SOLUTION: A number is 7 times the sum of its digits. If the digits are reversed, the new number is 30 less than twice the original.

Question 1082461: A number is 7 times the sum of its digits. If the digits are reversed, the new number is 30 less than twice the original.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
A and B are integers from 0-9.
Let the original number be .
The sum of its digits would be .
Digits reversed would be .
So,

1.
and

2.
Substituting from 1 into 2,

Solve for B, then use either equation to solve for A.

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