Answer:
{x,y} = {3,-3}
Step-by-step explanation:
[2] 2x = 3y + 15
[2] x = 3y/2 + 15/2
// Plug this in for variable x in equation [1]
[1] 5•(3y/2+15/2) + 2y = 9
[1] 19y/2 = -57/2
[1] 19y = -57
// Solve equation [1] for the variable y
[1] 19y = - 57
[1] y = - 3
// By now we know this much :
x = 3y/2+15/2
y = -3
// Use the y value to solve for x
x = (3/2)(-3)+15/2 = 3
let me know if this helps c:
