13-4x=1-x
13=4x+x=1-x+x
13-3x=1
13-1-3x=1-1
12-3x=0
12=3x
12/3=3x/3
4=x
Therefore, x=4
        
             
        
        
        
Answer:
If you are talking about the rectangular prism the equation is  
2 × L × W + 2 × L × H + 2 × W × H
If you are talking about Triangular prism the equation is
B × H + L × S + L × B + L × C
 
        
             
        
        
        
Answer:
The answer to your question is: letter B
Step-by-step explanation:
Data
diameter = 6 ft
area = ?
Formula
                A = πr²
radius = diameter / 2
           = 6 / 2
           = 3 ft
Substitution
               A = π(3)²
                  = 28.27 ft²
 
        
                    
             
        
        
        
Answer:
I think it's -2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-16
Step-by-step explanation:
a/-2=8 
you multiply -2 on both side a/-2(-2)=8(-2)
-2 cancels out one the one side 
your final answer is a= -16