Question

The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number. (Hint: write a system to determine the correct numbers)

Answer 1

X+y/2=7

X+y=14

3x=y/2

6x=y

X+6x=4

7x=14

X=2

Y=6*2=12

X=2

Y=12