Jack invested 57
Sam invested 38 
57 over 38 minus 1,00
        
             
        
        
        
Ya is = 10x-28 see the picture for explanation
        
             
        
        
        
Answer:
i think it was -(1/3)
Step-by-step explanation:
 
        
                    
             
        
        
        
ANSWER
X < 9
Solve
2x < - x + 20 + 7
2x < - x + 27 change the signs 
2x + x < 27 add the like terms
3x < 27 divide by 3 
x < 9