3. Решите уравнения: А) 0,2х + 1,7x -0,54 =0,22
В) 4,2 - (0,8 + х) = 8,82
Б) 5,6а -2а - 0,7а + 2,65 = 7
Г) 2,136 :(1,9-x) = 7,12​
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