Даю 50 баллов.Решите уравнение: 1) 7х = -30 + 2х; 5) 0,2х + 4,3 = 0,4х - 6,5; 2) 16 - 18х = -25x - 12; 6) 0,6х + 100 = 0,9x + 1; 3)
-17х + 20 = 7х - 28; 7) -9/14 х + 18 =-2/3 х + 17; 4) 20 - 2х = 27 + х; 8) -8/15 х -11 = 4/9 х + 11.
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