The first of two numbers is three less than the second number. Two times the second number plus three times the first is 21. What are the two numbers?
Question
Solution 1
Let's denote the first number as x and the second number as y.
From the problem, we have two equations:
x = y - 3 (since the first number is three less than the second number)
2y + 3x = 21 (since two times the second number plus three times the first is 21)
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