Start with

Subtract  from both sides:
 from both sides:

Divide both sides by 

And thus we solved the expression for l:

 
        
             
        
        
        
Answer:
4.09
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
slope is -7/5x-4
Step-by-step explanation:
 
        
             
        
        
        
5/8 - 3/10
Find the common denominator:
Multiples of 8:  8, 16, 24, 32, 40 (8 x 5 = 40)
Multiples of 10: 10, 20, 30, 40  (10 x 4 = 40)
5/8 = 5*5 / 8*5 = 25/40
3/10 = 3*4 / 10 *4 = 12/40
Now you have 25/40 - 12/40
25 -12 = 13
 Answer = 13/40
 The answer is A.
 
        
                    
             
        
        
        
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