(-4x-3)(3x+0,6) = 0-4x - 3 = 0 or 3x + 0.6 = 0-4x = 3 or 3x = -0.6x = -3/4 or x = -0.2
(5y - 7)(2y - 0.4) = 05y - 7 = 0 or 2y - 0.4 = 05y = 7 or 2y = 0.4y = 7/5 or y = 0.2
0.6(x + 7) = 0.5(x - 3) + 6.80.6x + 4.2 = 0.5x - 2.5 + 6.80.6x + 4.2 = 0.5x + 4.30.1x = 0.1x = 1
Таким образом, корни уравнений:
(-4x-3)(3x+0,6) = 0
-4x - 3 = 0 or 3x + 0.6 = 0
-4x = 3 or 3x = -0.6
x = -3/4 or x = -0.2
(5y - 7)(2y - 0.4) = 0
5y - 7 = 0 or 2y - 0.4 = 0
5y = 7 or 2y = 0.4
y = 7/5 or y = 0.2
0.6(x + 7) = 0.5(x - 3) + 6.8
0.6x + 4.2 = 0.5x - 2.5 + 6.8
0.6x + 4.2 = 0.5x + 4.3
0.1x = 0.1
x = 1
Таким образом, корни уравнений:
x = -3/4 или x = -0.2y = 7/5 или y = 0.2x = 1