Question

{ x: x is a natural number and 2x + 3 <13] in roster set ​

Answer 1

Step-by-step explanation:

x is a natural number,then it will be 1,2,3,4,5,6...

We want to substitute these numbers to get answer less than 13.

2(1)+3=5

2(2)+3=7

2(3)+3=9

2(4)+3=11

Therefore,

{5,7,9,11}