Question

A) biswant thought of a number. he double it and added 5. if he got 13, find the number he thought​

Answer 1

Four

Explanation:

13- 5= 8

8/2=4

You simply do the problem in reverse.

Answer 2

The number is 4

Explanation:

Let the number = x

Double of x = 2*x = 2x

Then add 5 to it: 2x +5

2x +5 = 13

Subtract 5 form both side

2x + 5 - 5 = 13 - 5

2x = 8

Divide both sides by 2

x = 8/2

x = 4