aalismart140 aalismart140
  • 15-07-2022
  • Mathematics
contestada

If 7 times a certain number is decreased by 8 and the result is equal to 20. find the number

Respuesta :

skabetix skabetix
  • 15-07-2022

Hello,

Answer:

number= 4

Step-by-step explanation:

     7x - 8 = 20

⇔ 7x - 8 + 8 = 20 + 8

⇔ 7x = 28

⇔ 7x/7 = 28/7

⇔ x = 4

Answer Link
lilylaq2
lilylaq2 lilylaq2
  • 15-07-2022

Answer:

certain number=4

Step-by-step explanation:

7x-8=20 then solve

Answer Link

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