The term to term rule of another sequence is multiply by 2 and add 3.

the third term of the sequence is 17 what is the first term?

The first term = 2

Step-by-step explanation:

As the term to term rule of another sequence is:

Multiply by 2 and add 3.

So

if

3rd term = 17

then

4th term = 17*2 + 3 = 37 5th term = 37 * 2 + 3 = 77 6th term = 77 * 2 + 3 = 157 7th term = 157 * 2 + 3 = 317

following this pattern

3rd term = 7*2 + 3 = 17

2nd term = 2 * 2 + 3 = 7

1st term = - 0.5 * 2 + 3 = 2