aalismart140 aalismart140

15-07-2022
Mathematics

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

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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

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lilylaq2 lilylaq2

15-07-2022

Answer:

certain number=4

Step-by-step explanation:

7x-8=20 then solve

Answer Link

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