Answer:
I think that would be 1
Step-by-step explanation:
 Do everything in the lines before anything else. -2 becomes a 2 and then you add that with the 12 and divide 12 on both sides to get one.
 
        
                    
             
        
        
        
Answer:
xx
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = 7
Step-by-step explanation:
Similar figures have sides that are proportional.  Setting up a proportion for the sides of the figures will help solve for 'x': 

Cross-multiply:  3(x + 1) = 6(x - 3) 
Distribute:  3x + 3 = 6x - 18 
Combine like terms:  21 = 3x 
Solve for 'x':  x = 7
 
        
             
        
        
        
Example A means
For every #of felt pieces you multiply that by the cost of one piece of felt to see how much you spent
Example
Felts cost $3 a piece
You get 7 pieces
7 x 3= 21
You spent $21 on felt
        
             
        
        
        
The answer i thinkkk would be,
x < -1