Solve the system using elimination: Help me please12x - 8y = -12 6x + 4y = -30
       
      
                
     
    
    
    
    
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12x - 8y = -12  
6x + 4y = -30
Multiply the 2nd equation by 2, to make the Y coefficients opposite:
6x + 4y = -30 x 2 = 12x + 8y = -60
Now add the two equations:
12x -8y = -12 + 12x +8y = -60
=  24x = -72
Divide bothe sides by 24 to solve for x:
x = -72/24
x = -3
Now replace x with -3 in the first equation to solve for y:
12(-3) - 8y = -12
-36 - 8y = -12
Add 36 to each side:
-8y = 24
Divide both sides by -8 to solve for y:
 y = 24 / -8
y = -3
X = -3 and y = -3
(-3,-3)
 
                                
             
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Answer:
a. 6  b. -2
Step-by-step explanation:
a. x^3 = 216
x = ³√216 
x = 6
b. -n^3/4 = 2
-n^3 = 8
-n = ³√8
- n = 2
n = -2
 
        
                    
             
        
        
        
        
Answer:
the second and thrid one :)
Step-by-step explanation: