Question:
What is the equation for the following statement,"One-half of a number decreased by 3 is 21.
Answer:
<em>half the number = x/2 </em>
<em>decreased by 3 </em>
<em>(x/2) -3 =21</em>
<em>=48</em>
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
For question #1:

For question #2:

 
        
             
        
        
        
10 I think because 10+10+8+8=36 and 8 is 2 less than 10