Find the nth term of this sequence 7, 10, 13, 16...

3n+4 or n3+4

Step-by-step explanation:

7,10,13,16

they all have a difference of 3

so that's 3n

start with the first one: 3(1)+?=7

7-3=4

3n+4

use this for the other ones to double check

3(2)+4

6+4=10

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: