Question

Supriya asked Neeti to think . Then she asked to double it and add 5 to it. If the result was 21,what number Neeti think?

Answer 1

let the number be x
double it = 2x
adding 5 = 2x+5
the result is 21 = 2x+5=21
                            2x=21-5
                           2x = 16
                            x = 16/2
                               =8 

so the number is 8

 hope its helpful

Answer 2

Answer:

heyyy your answers is =8

Step-by-step explanation:

let the number be .

double it = 2

adding 5 = 2x+5

the result is 21= 2x+5=21

2x=21-5

$2x = 1x = 16 \div x = 8$