Question

The first term in a sequence is x. Each subsequent term is three less than twice thw preceding term. what is the 5th term in the sequence?

A) 8x-21
B) 8x-15
C) 16x-39
D) 16x-45
E) 32x-93 ...?

Answer 1

I've solved it by using this sequence:
x, 2x-3,
2(2x-3)-3,
2(2(2x-3)-3)-3,
2(2(2(2x-3)-3)-3)-3
So the answer is D) 16x-45.