Ответы на вопрос:
(х+1/2): 5-8 1/2=4 (х+1/2): 5=4+8 1/2 (х+1/2): 5=12 1/2 х+1/2=12 1/2*5 х+1/2=25/2*5 х+1/2=125/2 х+1/2=62 1/2 х=62 1/2-1/2 х=62 проверка: (62+1/2): 5-8 1/2=4 62 1/2: 5-8 1/2=4 125/2*1/5-8 1/2=4 25/2-8 1/2=4 12 1/2-8 1/2=4 4=4
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