Question

A number, y, is equal to the difference of a larger number and 3. The same number is one-third of the sum of the large number and 9. Which equations represent the situation?

Answer 1

Answer:

D.

Step-by-step explanation:

Answer 2

Let the larger number be x.

A number, y, is equal to the difference of a larger number and 3.

y = x - 3

x - y = 3

The same number is one-third of the sum of the large number and 9.

y = (1/3)(x + 9)

3y = x + 9

x - 3y = -9

The equations are:
x - y = 3
x - 3y = -9