Problema Solution
The sum of two intergers is 121. Find the two integers if the larger one is 7 more than twice the smaller
Answer provided by our tutors
let x and y be those 2 integers
x + y = 121 (*)
x = 2y + 7 (**), x is the larger one
Now, substituting (**) into (*)
(2y + 7) + y = 121
<=> 3y + 7 = 121
<=> 3y = 114
<=> y = 38
Solving for x
x = 2(38) + 7 or x = 121 -y = 121 -38
x = 83