1) x = (-21.9 + 20.1)/(-3) = -1.8/-3 = 0.6
2) -91.2 - 2x = -100.7-2x = -100.7 + 91.2-2x = -9.5x = -9.5/-2x = 4.75
Поэтому корни уравнений:1) x = 0.62) x = 4.75
1) x = (-21.9 + 20.1)/(-3) = -1.8/-3 = 0.6
2) -91.2 - 2x = -100.7
-2x = -100.7 + 91.2
-2x = -9.5
x = -9.5/-2
x = 4.75
Поэтому корни уравнений:
1) x = 0.6
2) x = 4.75