Question

What is the solution of this linear system?

3x + 5y = -1
2x − 5y = 16
(-3, 2)
(-3, -2)
(3, -2)
(2, -3)

Answer 1

3x + 5y = -1
2x - 5y = 16
5x = 15
5 5
x = 3
3x + 5y = -1
3(3) + 5y = -1
9 + 5y = -1
- 9 - 9
5y = -10
5 5
y = -2
(x, y) = (3, -2)

The answer is C.