Irene R. answered 12/01/19
Senior Mechanical Engineer with 13+ years of Teaching Experience
,Let's let x represent the smaller number and y represent the larger number. Then since the sum of the two numbers is 6 , we can write the following equation:
x + y = 6
Then since 4 times the smaller number (x) is equal to 2 times the larger (y), we can also write:
4x = 2y
If we divide both sides the equation 4x=2y by 2, we find that:
4x/2 = 2y/2
2x = y
If we substitute 2x for y in our first equation, we can find the value of x (or the smaller number):
x + y = 6
x + 2x = 6
Then 3x = 6
x =2
So the smaller number is 2. Since the sum of the two numbers is 6, the larger number (or y) will be 4.
To verify, 4x does equal 2y:
4 * 2 = 2 * 4