Find two numbers whose sum is 24 and such that one is 2 times as large as the other.
(We will call the two numbers x and y.)
if you insist(We will call the two numbers x and y.)
this means, x + y = 24
this means (without loss of generality) that x = 2yand such that one is 2 times as large as the other.
now you have two simultaneous equations. use them to solve for x and y
can you continue?