(Picture) Please help me

Answer:
Equation A:
(x + yi) + (4 + 6i) = 7 - 2i
⇔ x + yi = 7 - 2i - 4 - 6i
⇔ x + yi = 3 - 8i
⇒ x = 3
y = -8
Equation B:
(x + yi) - (-8 + 11i) = 5 + 9i
⇔ x + yi = 5 + 9i + 11i - 8
⇔ x + yi = -3 + 20i
=> x = -3
y = 20
Step-by-step explanation: