Problema Solution
one number is three less than another. their sum is fifteen. find the numbers.
Answer provided by our tutors
x = y - 3
x + y = 15
y - 3 + y = 15
2y - 3 = 15
2y = 18
y = 9
x = y - 3
x = 9 - 3
x = 6
so the numbers are 6 and 9
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