Plis na teraz szybko daje 30 punktów
![Plis Na Teraz Szybko Daje 30 Punktów class=](https://pl-static.z-dn.net/files/d9f/94f9b3f8d0570fb9e5f98094c9a93ef1.jpg)
-4x = 7 /: (-4)
x = -7/4
2x + 9 = 15
2x = 6 /:2
x = 3
5x - 6 = x + 8
4x = 14 /:4
x = 3,5
3x + 12 = 2x - 3
x = -15