I think of a number add seven and multiply by four I get the same answer if I divide my number by two and add twenty one what’s my number ?

Respuesta :

Answer:

your number is 4

Step-by-step explanation:

4x+7=(x:2)+21

4x +7=0.5x + 21

3.5x +7=21

21-7=14

14:3.5=4