Question

B=(×:× is a natural number and 2x+3《13)​

Answer 1

Answer:

sorry i don't understand is this question

Answer 2

Answer:

B = { 1, 2, 3, 4 }

Step-by-step explanation:

Case 1,

(2 x 1) + 3 = 4 [allowable]

Case 2,

(2 x 2) + 3 = 7 [allowable]

Case 3,

(2 x 3) + 3 = 9 [allowable]

Case 4,

(2 x 4) + 3 = 11 [allowable]

Case 5,

(2 x 5) + 3 = 13 [not allowable]

So the set, B = { 1,2,3,4}