Substitue the expression 5-3x into the second equation        
      
                
     
    
    
    
    1  answer:
            
              
Answer: 
<h2><u>
X= 1 </u></h2>
Step-by-step explanation: 
<em>y = 5 - 3x</em>
<em>5x - 4y = -3</em>
you substitute for y since you know what y equals.
so, it will then be
 5x -4(5 -3x) = -3 
you then multiply -4  by everything in the parenthesis
so then it will be 
5x - 20 + 12x = -3  
Then combine like terms 
5x + 12x = 17x  
then the new equation is 
17x -20 = -3  
 the next step is to and 20 to both sides since it is negative you do the opposite. 
17x - 20 = -3
<u>      + 20     +20</u>
17x = 17 divide 17 by both sides sice 17 is being multiplied by x you do the opposite and divide and you get 1. 
<h2><u>
so, X = 1 </u></h2>
 
                                
             
         	
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Answer: choice A or (-25)(-25)=625 
Step-by-step explanation: 
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Step-by-step explanation: 
 
        
                    
             
        
        
        
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