-1-2•[(-1)+5)} I am so lost on these math problems
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
Answer:
-9
Step-by-step explanation:
Use the order of operations. Do these operations in this order:
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Note: when either multiplication and division, or addition and subtraction are there, go left to right.
Equation: -1 - 2 · {(-1) + 5}
Solve:
- -1 - 2 · {(-1) + 5}
- -1 - 2 · {4}
- -1 - 8
- -9
*Challenge*
Using the same method, see if you can solve this equation:
6 ÷ 2(1+2)
-Chetan K
 
                                
             
                    
              
              
                
                
The answer is -9 because me said so
                                
             
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Answer:
3x-4y
Step-by-step explanation:
combine like terms. 2x+x=3x. 
-5y+y=-4y
 
        
             
        
        
        
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Answer:
2/3
Step-by-step explanation:
3y = 2x
Divide each side by 3
3y/3 = 2x/3
y = 2/3 x
The  direct variation relationship is 
y = kx
In this case k = 2/3
 
        
                    
             
        
        
        
X can not = 0 because if I did your answer would not be a fraction it would be 0
        
             
        
        
        
Answer:
In solid matter the particles jiggle but generally do not move from place to place