Question

решительно пж( проверить надо)

Answer 1

в) 0.2(0.7x - 5) + 0.02 = 1.4(x - 1.6)
0.14x - 0.98 = 1.4x - 2.24
1.26 = 1.26x
x = 1.26/1.26
x = 1
г) 2.7(0.1x + 3.2) + 0.6(1.3 - x) = 16.02
0.27x + 8.64 + 0.78 - 0.6x = 16.02
-0.33x = 6.6
x = -6.6/0.33
x = -20