Respuesta :
21 × what = 7
Divide both sides by 21 and reduce the fraction.
what = 7/21 = 1/3
					                   So it would be 21 x y = 7 
y = 7/21
Which is also 1/3
Best of luck!
					                
					             y = 7/21
Which is also 1/3
Best of luck!
 
			                   
					                  