Hello. It is very important that I have a question, I hope you will explain. 'After giving a third of the boy's stationery to a friend and 6 to his brother, 12 stays left. How many stacks did the boy have before?

lizochkascherb lizochkascherb    3   04.09.2021 12:54    0

Ответы
Rrrr09 Rrrr09  04.09.2021 13:00

27

Пошаговое объяснение:

6+12=18

18/2=9

9*3=27

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Igor2000Petrov Igor2000Petrov  04.09.2021 13:00

Solution:

1)12+6=18

2)x-1/3x=18

2/3x=18

x=18×3/2

x=27

Answer:27stacks

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