Respuesta :
					                   Let x be the number you choose. Then add 3 to this number. 
You have x + 3.
Now multiply 7 to this.
So you should have 7(x+3) as your algebraic expression.
					                
					                
					             You have x + 3.
Now multiply 7 to this.
So you should have 7(x+3) as your algebraic expression.
 
			                  