Question

The sum of two consecutive numbers is 21 find the number

Answer 1

Hello

The sum of two consecutive numbers is 21 find the number :

n + n + 1 = 21

2n + 1 = 21

2n + 1 - 1 = 21 - 1

2n = 20

2n/2 = 20/2

n = 10

Et n + 1 = 11

Answer 2

hey dear ,    let no. : x, x+1  so x+x+1=21 so x =10 other no. 11  hope it helps u