SOLUTION: I think of a pair of a numbers. If I add 7 to the first I obtain a number which is twice the second. If I add 20 to the second. I obtain a number which is four times the first. Wha

Question 830309: I think of a pair of a numbers. If I add 7 to the first I obtain a number which is twice the second. If I add 20 to the second. I obtain a number which is four times the first. What are the number
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let and be your numbers.
1.
2.
From eq. 1,

Substitute this into eq. 2,

Then from eq. 1,

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