Markfigueroaid
Answered

What is the number increased by one half of itself is equal to 21

Sagot :

ILoveKunpimookid
14 :) 1/2 of 14 is 7. So, if you add 14 + 7, the answer will be 21.
Let the number be x

x + x/2 = 21

LDC: 2

(2)x + (2)(x/2) = (2) (21)
2x + x = 42
3x = 42
3x/x = 42/3

x = 14

The number is 14.

To check:
x + x/2 = 21

14 + 14/2 = 21
14 + 7 = 21
21 = 21

ID Other Questions