Ответ:
0.2x+3=17-0.05x
0.2x+0.05x=17-3
0.25x=14
x=14:0.25
x=56
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Ответ:
0.2x+3=17-0.05x
0.2x+0.05x=17-3
0.25x=14
x=14:0.25
x=56