Answer:
ONE: x = 10
Step-by-step explanation:
3x + 6 = -1 - 3 + 4x
3x + 6 = -4 + 4x       |subtract 6 from both sides
3x = -10 + 4x      |subtract 4x from both sides
-x = -10      |change the signs
x = 10
 
        
             
        
        
        
Answer:
6.5
Step-by-step explanation:
3.5 + 3
 
        
                    
             
        
        
        
The coordinates of C are (3, 2)
The coordinates of D are (4, 1)
        
                    
             
        
        
        
The answer is 20. you'll have to multiply 10 times 3 and get 30. Then you'll subtract the 10 from the 30 and get 20