Question

помогите ппппжжжжж. 8х+11целых2/11=15

Answer 1

8х + 11 2/11 = 15

8х = 15 - 11 2/11

8х = 3 9/11

8х = 42/11

х = 42/11 : 8

х = 42/11 · 1/8

х = 42/88

х = 21/44 - сократили на 2

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Проверка:

8 · 21/44 + 11 2/11 = 15

168/44 + 11 2/11 = 15

3 36/44 + 11 2/11 = 15

3 9/11 + 11 2/11 = 15

14 11/11 = 15

15 = 15