The answer for this problem would be x equal to 430 cm and y is equal to 325. This is computed by establishing the equations. This first equation based on first statement would be x = 15 + y and the second would be 5x = 3y + 525. Then it is solve as follows:
5x = 3y + 525 
        
                    
             
        
        
        
Answer:
Explanation has been given in the attachment.
Step-by-step explanation:
 
        
             
        
        
        
First multiply each term by 24(the common denominator found by 8×3) to remove the fractions and make things easier. 

This will give you,

Then just continue to simplify and isolate the variable.



 
 
        
        
        
15.26 mm. All you gotta do is convert the millimeters to centimeters, and that subtract. Make sure the decimal point is right, tho. :)