Problema Solution
One number is nine less than a second number. Five times the first is 9 more than 2 times the second. Find the numbers
Answer provided by our tutors
let 'x' and 'y' be the numbers
one number is nine less than a second number
x = y - 9
five times the first is 9 more than 2 times the second
5x = 9 + 2y
by solving the system of equations
x = y - 9
5x = 9 + 2y
we find
x = 9
y = 18
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