Answer:
1st option
Step-by-step explanation:
Given the 2 equations
2x + 5y = 19 → (1)
y = 3x - 3 → (2)
Substitute y = 3x - 3 into (1)
2x + 5(3x - 3) = 19
 
        
             
        
        
        
Complete Question 
The complete question is shown on the first uploaded image 
Answer:
a
    No singular point due to the exponent in the solution 
     The interval is   
b
    NONE
Step-by-step explanation:
From the question we are told that 
      
The generally solution is mathematically represented as 
          
=>       
 integrating both sides  
          
   =>   
  =>   
  =>    
Here 
 =>     
From the above equation we see that the domain for x has no singular point the interval is 
        
Also there is no transient term in the general solution obtained because as   there no case where
 there no case where 
 
        
             
        
        
        
"Over" usually means divide. First hint, check.
If we write it out, it looks like this:

This is the same as <em>some number divided by 7.</em>
 
        
        
        
Answer:
x = 19
Step-by-step explanation:
2x - 10 = 28
2x = 38
x = 19
Best of Luck!