Ответы на вопрос:
(80 + 16(4х + 154)) = 55 * 48 (80 + 16(4х + 154)) = 2640 16(4х + 154) = 2640 - 80 16(4х + 154) = 2560 4х + 154 = 2560 : 16 4х + 154 = 160 4х = 160 - 154 4х = 6 x = 1 1/2 x = 1,5
(80+16*(4х+154)): 48=55 80+16(4х+154)=55*48 80+16(4х+154)=2640 16(4х+154)=2640-80 16(4х+154)=2560 4х+154=2560: 16 4х+154=160 4х=160-154 4х=6 х=6: 4 х=1,5(или х = ) ответ: х = 1,5
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