Respuesta :
					                   you know m=3
so you can substitute that into your expression "4+5m"
4+5m
4+5 x 3
using pemdas
4+15
19
4+5m=19 if m=3
					                
					                
					             so you can substitute that into your expression "4+5m"
4+5m
4+5 x 3
using pemdas
4+15
19
4+5m=19 if m=3
 
			                   
					                  