Question

i need help please thanks
Tennis balls are sold in packages of 3. Golf balls are sold in packages of 12. A sporting goods store orders 15 packages of balls. The total number of balls is 126.
The system of linear equations g plus t equals fifteen, Twelve g plus three t equals one hundred and twenty-six represents the scenario where g is the number of packages of golf balls and t is the number of packages of tennis balls.
The system of linear equations is graphed below.

How many packages of tennis balls were ordered?

6 packages

9 packages

12 packages