X=4y-5
2x+3y=23
Solve using the substitution method
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
x =7, y = 3
Step-by-step explanation:
We substitute the value of x in terms of y (given) into the equation.
Then we solve for y and plug in the value of y back into the equation for the value of x to find x. 
 
                                
             
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Answer:
b. x = 80, y = 100, z = 63
Step-by-step explanation:
 
        
             
        
        
        
For answer 16 its - 
Exact Form:  

or 
Decimal Form: 4. 

Hopeful it helps 
 
        
        
        
Answer:
96
Step-by-step explanation:
 
        
                    
             
        
        
        
C is your answer since it is the only one without any exponents