(20-x)-6 7/18=8 17/18

Question

(20-x)-6 7/18=8 17/18

Answer 1

Вот........................

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Answer 2

20-x=8 17/18+ 6 7/18

20-x= 14 24/18

20-x=15 6/18

20-x=15 1/3

x=20-15 1/3

x=19 3/3- 15 1/3

x=4 2/3