Răspuns :
-2×+8-12=-20 in Z
-2×+8-12=-20
-2×+8=-20+12
-2×+8=-8
-2×=-8-8
-2×=-16 | :-1
2×=16
x=16:2
x=8
Este corect. Sper ca te-am ajutat! Succes!! :*
-2×+8-12=-20
-2×+8=-20+12
-2×+8=-8
-2×=-8-8
-2×=-16 | :-1
2×=16
x=16:2
x=8
Este corect. Sper ca te-am ajutat! Succes!! :*
-2×+8-12=-20
-2x - 4 = - 20
- 2x = - 20 + 4
-2x = - 16
x = - 16 : (-2)
x = 8
-2x - 4 = - 20
- 2x = - 20 + 4
-2x = - 16
x = - 16 : (-2)
x = 8