. Выполните действия:
13/1 4:1 4/21: 2 3/5
4. Решите уравнение:
(15 5/12+x) -9 7/12 =10 11/12
13/1 4:1 4/21: 2 3/5
4. Решите уравнение:
(15 5/12+x) -9 7/12 =10 11/12
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Answers & Comments
(15 5/21+х)-9 7/12=10 11/12
(15 5/21+х)=10 11/12+9 7/12
15 5/21+х=20 1/2
х=20 1/2-15 5/21
х=5 11/42