Problema Solution
One number is 7 more than another. Their sum is 23. Find the numbers
Answer provided by our tutors
let 'x' and 'y' be the numbers
one number is 7 more than another
y = x + 7
their sum is 23
x + y = 23
by solving the system of equations
y = x + 7
x + y = 23
we find
x = 8
y = 15
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the numbers are 8 and 15.