Найду корень уравнения: 4х + 5,5 = 2х - 2,5
4*x + 11/2 = 2*x - 5/2
4*x+(11/2) = 2*x-(5/2)
4*x+11/2 = 2*x-(5/2)
4*x+11/2 = 2*x-5/2
x = -8 / (2)
x1 = -4
x1 = -4.0