(3 целых 1/7-n)+ 1 целая 4/7=3 целым

Question

(3 целых 1/7-n)+ 1 целая 4/7=3 целым

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Comments

Помогите срочно

Answer 1

(3и1/7 - n) + 1и4/7 = 3и5/7 + 2/7
3и1/7 - n = 3и5/7 + 2/7 - 1и4/7
3и1/7 - n = 2и3/7
n = 3и1/7 - 2и3/7
n = 5/7