Unknowns on both sides. Solutions  | 
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| x - 4 = 3x + 8 | Equation 
        is 
        
          | 
    Solution | 
| 8x - 4 = 3x + 8 | Equation 
        is 
        
          | 
    Solution | 
| 5x - 4 = -2x + 8 | Equation 
        is 
        
          | 
    Solution | 
| 6x - 4 = 8x - 8 | Equation 
        is 
        
          | 
    |
| 15x - 5 = 13x + 1 | Equation 
        is 
        
          | 
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| 3x + 7 = 5x - 3 | Equation 
        is 
        
          | 
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| 9x + 4 = 15x - 20 | Equation 
        is 
        
          | 
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