105номер (2,4) примеры

Question

105номер (2,4) примеры

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Answer 1

1) (3/5-25/100)×=49/10
(3/5-1/4)×=49/10
(12-5/20)×=49/10
7/20×=49/10
×=14

2) (4-17/7)x=33/14
(28/7-17/7)x=33/14
x=33/7*7/11
x=3