Question 28
If the calculated answer is not an integer, give the nearest integer. If the calculated answer has more than five digits, give its last five digits.
Integers $x,y>1$ satisfy: $\dfrac7x$ and $\dfrac{11}y$ are in lowest terms, and $\dfrac7x+\dfrac{11}y$ is an integer. How many ordered pairs $(x,y)$ are possible?
Integers $x,y>1$ satisfy: $\dfrac7x$ and $\dfrac{11}y$ are in lowest terms, and $\dfrac7x+\dfrac{11}y$ is an integer. How many ordered pairs $(x,y)$ are possible?