Question

x+1 pe 2= -1 pe 2. Rezolvarea completa va rog frumos.

Answer 1

x+1 = -1
2         2

2(x+1)=-2
2x+2=-2
2x=-2-2
2x=-4
x=-4:2
x=-2

Answer 2

x+1/2= -1/2
2(x+1)= (-1)x2
2x+2= -2
2x=(-2)-2
2x=-4
x=(-4):2
x=-2
⇒S={-2}