Answer: x = 7
Step-by-step explanation:
To solve the equation, 
First step, open the bracket 
3(x-5)-14=2(x-7)+2
3x -15 -14 = 2x -14 +2 
Then, add the like terms
3x - 29 = 2x -16
Transpose the values at the right hand side to the left hand side 
3x - 2x = -16 + 29
x = 7
 
        
             
        
        
        
My best guess is a 1/225 chance in guess the right combination
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
16 divided by $3.50 = 4.5
 
        
                    
             
        
        
        
Let x be the number of adult tickets sold.
<span>That means 400 - x is the number of student tickets.
The revenue from adult tickets will be $3 * x, which we can call 3x.
The revenue from student ticks will be $2 * (400 - x), or 800 - 2x.
The total revenue is $1050, so that means:
3x + (800 - 2x) = 1050.
Removing the parentheses:
3x + 800 - 2x = 1050
</span><span>Subtracting 800 from both sides:
3x - 2x = 250
Simplifying the left side:
x = 250, which is the number of adult tickets.
400-x = student tickets = 400-250 = 150.
ALWAYS check!
In this case, check the revenue:
3x = 3(250) = 750
2(150) = 300
750 + 300 = 1050. Check!</span>