1.4(3-x) - 0.9(x+2) = 4.74.2 - 1.4x - 0.9x - 1.8 = 4.72.4 - 2.3x = 4.7-2.3x = 4.7 - 2.4-2.3x = 2.3x = 2.3 / -2.3x = -1
Ответ: x = -1
1.4(3-x) - 0.9(x+2) = 4.7
4.2 - 1.4x - 0.9x - 1.8 = 4.7
2.4 - 2.3x = 4.7
-2.3x = 4.7 - 2.4
-2.3x = 2.3
x = 2.3 / -2.3
x = -1
Ответ: x = -1