Answer:
n= 1
x= 2
Step-by-step explanation:
the equations are 2n - x = -1
2x + 3n = 9
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945 arrangements
(fifth term in the sequence with m=5 and five pairs for 10 people in total).
I believe the answer is B. it is correct if it says, 1: 1,200
Because the ratio is 1: 1,200
