could someone explain this please?
A range of a set of numbers is 30. The highest number in the set is two times larger than the lowest number in the set. Which set of algebraic equations will solve for the highest and lowest numbers in the set?
A range of a set of numbers is 30. The highest number in the set is two times larger than the lowest number in the set. Which set of algebraic equations will solve for the highest and lowest numbers in the set?

Y= high number, X= low number
yx=30
x=2y
yx=30
x=2y