Twice (2 times) the difference (subtraction) of a number (y) and 7 equals 3.
2*(y-7) = 3
hope this helps :)
        
             
        
        
        
Answer:
$9.03
Step-by-step explanation:
Using x for pay rate
63.24=7x Divide both sides by 7
x=9.03
 
        
             
        
        
        
Change 15/20 to 3/4
Now we have 

multiply 6 to 3= 18 ÷ 4 = 4.5
x = 4.5