Answer:
It's division because to get x by itself, you need to divide both sides. X = 9
Step-by-step explanation:
6x = 54
Divide both sides by 6
54/6 = 9
 
        
                    
             
        
        
        
Answer:
B multiplying by 
Step-by-step explanation:
Multiple is opposite from divide.
Plus is opposite from subtract.
 
        
             
        
        
        
<u>Answer-</u>
The equations of the locus of a point that moves so that its distance from the line 12x-5y-1=0 is always 1 unit are

<u>Solution-</u>
Let a point which is 1 unit away from the line 12x-5y-1=0 is (h, k)
The applying the distance formula,








Two equations are formed because one will be upper from the the given line and other will be below it.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Equation of circle with center (a , b) and radius, r is :

Given :  a = 0 , b = - 4
Step 1 : Find the radius.
        Given ( 6 , 0 ) lies on the circle. Therefore the distance between the center (0 , - 4) of the circle and ( 6 , 0 ) gives the radius of the circle.
    
      
Step 2 : Equation of circle.
   
 
        
             
        
        
        
Answer:
x=0.25 or -1/4
Step-by-step explanation:
120x + 21 = -9
120x = -30 (-21 from both sides of equation)
x = -0.25 or -1/4 (divide 120 from both sides of equation)