Answer:
x=4
Step-by-step explanation:
4x-6 + 2x = 18
Combine like terms
6x -6 = 18
Add 6 to each side
6x-6+6 =18+6
6x = 24
Divide each side by 6
6x/6 = 24/6
x =4
 
        
             
        
        
        
Answer:
Step-by-step explanation: add the equations
2x² = 30 
x² = 15
y² = 12 - 15
     = -3
x4 -y4 = 15² - (-3)²
            = 216
 
        
             
        
        
        
The answer is D. The law of detachment states that 
"If P than Q. P." 
In this case passing the bar exam is P and getting to practice law is Q. So if we know that Candice is allowed to practice law if she passes the bar exam and that she did pass the exam. The conclusion that Candice can now practice law is valid.
        
             
        
        
        
Answer:
140 ways
Step-by-step explanation:
4 x 5 x 7 = 140