990. Решите уравнение 1) 8,5 - (0,5 - 0) = 3.8;
2) -2,3x + (2,8 + 9.30) = 9.8;
3) -(9.8 - 1) - 10,5 = -20.8;
4 6,7x+ (-3,5-3,3x) = 6,5.
2) -2,3x + (2,8 + 9.30) = 9.8;
3) -(9.8 - 1) - 10,5 = -20.8;
4 6,7x+ (-3,5-3,3x) = 6,5.
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