Answer:
2 2
1 -3
Step-by-step explanation:
2b=[4 4]
2 -6
b=[4/2 4/2]
2/2 -6/2
b=[2 2]
type it in to desmos online
-9 + -68 = -9 - 68 = -77
the answer is negative.
Answer: 7.745967