Answer:
Step-by-step explanation:
Transform System A to system B
option c
Transform System B to system C
option b
2x - 4y = -10 ---------A1
-8x + 7y = 22 ----------A2
A1 * 4 --------> 8x - 16y = - 40
A2 --------> -8x + 7y = 22 {Add }
-9y = -18 -------------B2
B2 ÷ (-9) y = 2
