The sum of two numbers is 28. The first number, x, is three

times the second number, y.

Question

Mathematics

Dean Thompson

26 December, 17:54

The sum of two numbers is 28. The first number, x, is three

times the second number, y.

+1

Answers (1)

Know the Answer?

Buck · Answer 1

x=21

y = 7

Step-by-step explanation:

x+y = 28

x = 3y

Substitute the second equation into the first

3y+y = 28

4y = 28

Divide by 4

4y/4 = 28/4

y = 7

Now we need to find x

x = 3*y

x = 3*7

x = 21

The sum of two numbers is 28. The first number, x, is threetimes the second number, y.

The sum of two numbers is 28. The first number, x, is three

times the second number, y.