Answer:
equation 1 and 3
1 .y=2 x on top
3 .y=0x 2 on top + 6
A= -53/7
Step-by-step explanation:
1 x 10 -1 x 7 x A=7 x 9
10-7A =7 X 9
10-7A=63
-10 -10
-7A=53