3/4 of a number is 21. What is the number. Please tell me what to do in steps to find the answer, I want to know how to solve these problems, please in kid form. Work will be appreciated as soon as possible! :)

Respuesta :

(3x/4) = 21
/3           /3        divide 21 by 3
(x/4) = 21/3 = 7

(x/4) = 7
*4        *4          multiply 7 by 4
x = 7*4 = 28

answer = 28