Multiple Choice
Solve the system.
-xy = 20 x + y = 9
A) {(5, 4) , (4, 5) }
B) {(-5, -4) , (-4, -5) }
C) {(-5, 4) , (-4, 5) }
D) {(5, -4) , (4, -5) }
Correct Answer:
Verified
Correct Answer:
Verified
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