Answer:
They are both correct because, they both used the properties of equality.
Step-by-step explanation:
 
        
             
        
        
        
3.) 2 × 0.5 = 1
4.) -2 × -0.5 = 1
        
             
        
        
        
Answer:
x = -11
Step-by-step explanation:
First, add three to both sides on the equation. Then, your equation becomes 55= -5x. Finally, divide both sides by -5 to get -11 = x. So, x equals -11. Hope this helps!
 
        
                    
             
        
        
        
Answer:
-2x-5
Step-by-step explanation: