meilahnwa5 meilahnwa5
  • 03-08-2020
  • Mathematics
contestada

Manuel says that he can solve the equation 3n = 21 by multiplying both sides by ⅓. Explain why this is correct.

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rajatakeshisimla
rajatakeshisimla rajatakeshisimla
  • 03-08-2020

Step-by-step explanation:

はい、両側を削除して、3を掛けて7にします

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marcthemathtutor
marcthemathtutor marcthemathtutor
  • 03-08-2020

Step-by-step explanation:

Given:

3n = 21

if we multiply both sides by 1/3, we will get:

3n = 21

3n x (1/3)= 21 x (1/3)

3n/3 = 21/3

n = 21/3

n = 7

Hence we can indeed solve for n by multiplying both sides by (1/3)

Answer Link

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