What is the solution to the system: 2x + 3y = 1 and -x + y = -3?
(2, -1)
2x + 3y = 1 ___(1)
-x + y = -3 ____(2)
Multiplying equation (2) by 2
-2x + 2y = -6 ___(3)
Adding (1) and (3), we get
5y = -5
y = -1
Plugging the value of y in equation (2)
-x - 1 = -3
x = 2