Ответы на вопрос:
3×(8х+51)=201; 8х+51=201: 3 8х+51=67 8х=67-51 8х=16 х=2(46х-57): 3=27; 46х-57=27·3 46х-57=8146х=81+5746х=138х=3(19х+62)÷15=1319х+62=13·15 19х+62=195 19х=195-62 19х=133 х=133: 19 х=7
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