`2x+5=-11`
`2x=-11-5`
`2x=-16`
`x=-16:2`
`x=-8`
Vậy `x=-8`
2x + 5= -11
2x = -11 - 5
2x = -16
x = -16 : 2
x = -8
2x+5=-11
2x =-11-5
2x =-16
x =-16:2
x =-8
2x+5=-11
2x =-11-5
2x = -16
x =-16:2
x =-8
Ta có: 2x+5=-11
nên 2x=-16
hay x=-8
Vậy: x=-8
2X +5=-11
2X=-11-5
2X=-16
=>X=-8
Vậy X=-8