Answer:
Step-by-step explanation:
A)  5x - 7 = 5x becomes -7 = 0 if 5x is subtracted from both sides.  This result is never true, so NO SOLUTION
B)3x−9=3(x−3)   Performing the indicated multiplication, we get
3x - 9 = 3x - 9.  This is always true, so there are INFINITELY MANY SOLUTIONS
C)2x−6=−2(x−3)   Performing the indicated multiplication, we get
2x - 6 = -2x + 6.  Adding 2x - 6 to both sides results in
4x - 12 = 0, or 4x = 12.  Thus, the solution is x = 3.  ONE SOLUTION
D)2x+6−5x=−3(x             This equation is incomplete
 
        
                    
             
        
        
        
Answer:
y=5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: 11
The code would print 11 as x=x-4 basically sets x to what x was and subtracts it by 4 which means 15 was its previous value and it takes 4 away from it so it is now 11. Then because the loop condition is x=11 the loop condition has been met and will now go and display x.