Answer:
x=13 and y =6
Step-by-step explanation:
y=x-7
y=6
Substitute y=6 into the first equation
6 = x-7
Add 7 to each side
6+7= x-7+7
13 = x
x=13 and y =6
 
        
                    
             
        
        
        
Answer:
by reflection, if you mean swapped, then the answers are A'(1,-6) and B'(4,2)
i hope these are the answers you are looking for
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS).
 
        
             
        
        
        
Answer:
Step-by-step explanation: 
X = number of Yan's marbles.  x-3 = number of Geraldo's marbles
annswer: x + (x - 3) = 21
hopes this helps :) 
 
        
                    
             
        
        
        
Answer: squares
Step-by-step explanation:
Squares