Решите уравнение :а) 7, 14x + 17, 86x = 38 22x = 38 x = 38 : 22 x = б) 199, 29 x - 119, 29x = 72 80x = 72 x = 80 : 72 x = в) 84,6x - 44, 6x = 35 40x = 35 x = 35 : 40 x = г) 39, 49x + 10, 51x = 18 50x =...

Question

Решите уравнение :а) 7, 14x + 17, 86x = 38 22x = 38 x = 38 : 22 x = б) 199, 29 x - 119, 29x = 72 80x = 72 x = 80 : 72 x = в) 84,6x - 44, 6x = 35 40x = 35 x = 35 : 40 x = г) 39, 49x + 10, 51x = 18 50x =...

Решите уравнение : а) 7, 14x + 17, 86x = 38 22x = 38 x = 38 : 22 x = б) 199, 29 x - 119, 29x = 72 80x = 72 x = 80 : 72 x = в) 84,6x - 44, 6x = 35 40x = 35 x = 35 : 40 x = г) 39, 49x + 10, 51x = 18 50x = 18 x = 18 : 50 x = Помогите решить.

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Accepted Answer

а) 7,14х+17,86х=38 25х=38 х=38/25 х=1,52 ПРОВЕРКА : 7,14*1,52+17,86*1,52=38 б) х=0,9 ПРОВЕРКА : 199,29*0,9-119,29*0,9=72 в) х=0,875 ПРОВ