Y = 2x - 8  
I used a graphing calculator to figure it out.
        
             
        
        
        
First you distribute...
-2n - 6 - 35 - 14n
Then you simplify...
-16n - 41
Done
        
             
        
        
        
Let's solve this problem step by step.
28=8b+13b-35
Step 1: Bring 35 to 28. 
28=8b+13b-35
+35            +35
63=8b+13b
Step 2: Add 8b and 13b.
63=21b
Step 3: Divide both sides by 21.
63/21=21b/21
So, the answer for this problem is 3=b.
 
        
             
        
        
        
Answer:
3/8
Step-by-step explanation:
You don't know whether they are young or old and your not replacing them so your best answer is 3/8.