(51,32+х)×0,12=72
51,32+х=72:0,12
51,32+х=600
Х=600-51,32
Х=548,68
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(51,32+548,48)*0,12=72
Скинь фото!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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1) 492345-264174=228171 2)228171:57=4003 3)26×693=18018 4)88592:98=904 5)4003+18018=22021 6)22021-904=21177