Question

Розв'яжи рівняння    7/12х - 5/18 = 2 4/9​

Answer 1

(7/12)х - 5/18 = 2 4/9

(7/12)х = 2 4/9 + 5/18

(7/12)х = 2 8/18 + 5/18

(7/12)х = 2 13/18

(7/12)х = 49/18

х = 49/18 : 7/12

х = 49/18 · 12/7

х = (7·2)/(3·1)

х = 14/3

х = 4 целых 2/3

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Проверка:

7/12 · 14/3 - 5/18 = 49/18 - 5/18 = 44/18 = 22/9 = 2 4/9.