SOS!!!!!!!!!!!!!!!!!!!!!!!!

Question

SOS!!!!!!!!!!!!!!!!!!!!!!!!

---

Answer 1

1. 1) 3 2) -2 3) 3 4) 49 
4. 1) 3х+1=25
3х=24
ч=8
2) х+2+х+1=1
2х=-1
х=-1/2

Comments

а 4

---

задание

---

тут первое и четвертое