x, 3x-1, 4x+2, ...
In the sequence above, each term after the first is 7 greater than the preceding term. What is the value of the either term in the sequence?
The answer is 53 but why :C?

Question

x, 3x-1, 4x+2, ...
In the sequence above, each term after the first is 7 greater than the preceding term. What is the value of the either term in the sequence?
The answer is 53 but why :C?

anonymous · Answer

x=x,
x=(3x-1)+7

anonymous · Answer

huh... i had the formula set  up weird :l but YAY thank you!

anonymous · Answer

let me dbl check tho

anonymous · Answer

i made a mistake

anonymous · Answer

x+7=3x-1

x=4
so plug it to the 3rd
I think

anonymous · Answer

4, 11, 18, ... yeah that does work! thanks :D

anonymous · Answer

but why 53?

anonymous · Answer

it works that  they increase by 7 but where is the 53 coming from?

anonymous · Answer

thats just the correct answer. thats the 8th # in the sequence

anonymous · Answer

i dont understand lol I just now I meet the requirement they go up by 7 :)

anonymous · Answer

no i figured it out now thanks you you. because of the formula u gave me,
4+7(8-1)=53 :3 thank you!!

anonymous · Answer

4+7(8-1)=53  where you get that formula lol  ok i wont argue that I am right just as long as you are satisfied with your answer :)

anonymous · Answer

its a continuation of your formula D: because you found out that x=4

anonymous · Answer

Well what is the formula for the 8th term in terms of x?

anonymous · Answer

exactly as i said, basically. 
t^8=4+(8-1)
t^8=53