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Answer :

Answer:

x = 40

Step-by-step explanation:

            15           15 โ€ข 8

   15 =  โ€”โ€”  =  โ€”โ€”โ€”โ€”โ€”โ€”

              1        8  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

3x - (15 โ€ข 8)     3x - 120

โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”  =  โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”

      8                                                 8    

Pulling out like terms :

  3x - 120  =   3 โ€ข (x - 40)

 3 โ€ข (x - 40)

 โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”  = 0

      8      

 3โ€ข(x-40)

 โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€” โ€ข 8 = 0 โ€ข 8

    8    

  3  โ€ข  (x-40)  = 0

  3   =  0

  x = 40

Answer: x = 40

Step-by-step explanation:

3x รท 8 = 15

Multiply 8 in both sides

3x = 120

Divide both sides by 3

x = 40

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