Answer:
(3, 4)
Explanation:
2a - 3c = -6
a + 2c = 11
Solve the second equation for a.
a = 11 - 2c
Substitute 11 - 2c for a in the first equation.
2a - 3c = -6
2(11 - 2c) - 3c = -6
22 - 4c - 3c = -6
-7c = -28
c = 4
a = 11 - 2c
a = 11 - 2(4)
a = 3
Solution: (3, 4)