Решите уравнение: (2.8 - 0.1х) * 3.7 = 7.4
(2.8-0.1х)*3.7=7.4 2.8-0.1х=7.4:3.7 2.8-0.1х=2 -0.1х=2-2.8 -0.1х=-0.8 х=-0.8:(-0.1) х=8