Answer:
it equals 7
Step-by-step explanation:
 
        
             
        
        
        
-84.8 is with it rounded to the nearest tenth
        
                    
             
        
        
        
$235, I believe. 240-5=235.
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Subtracting 10x from the given equation gives
  120 = 15x
Then dividing by 15 gives
  8 = x
Zorah will have to play 8 hours in order to break even (cover her expenses exactly).