3x-16x-24=-12x-30
-13x+12x=-30+24
-x=-6 /*(-1)
x=6
Step-by-step explanation:
tricky, as the sequence does not define the input values.
by we can assume that the corresponding input values are 1, 2, 3, 4, 5, ... as it is usual for a sequence.
in that sense, b is the correct answer.
Answer:
I think that's right. I checked my answer and proved it on that sheet.
72, 96, 84, 12
72 + (7x+24) = 180
7x + 96 = 180
7x = 84
x = 12