Решите уравнение:
2) 100x = 28целых1/2 - 3,7;
3) x : 100 = 0,81 + 0,09;
4) x : 1000 = 2,149 - 1,234.
2) 100x = 28целых1/2 - 3,7;
3) x : 100 = 0,81 + 0,09;
4) x : 1000 = 2,149 - 1,234.
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х= 248/10÷100=248/1000=62/250=31/125
х= 31/125
3)х÷100=0,81+0,09
х÷100=0,9
х= 0,9×100=90
х=90
3) х÷1000=0,915
х= 0,915×1000=915
х=915