5+х=77 2х+1=3 2х+5=17-х. 12-х=-65+6х 5х=65 х:7=6 24x+40=160-6x

Question

5+х=77 2х+1=3 2х+5=17-х. 12-х=-65+6х 5х=65 х:7=6 24x+40=160-6x

Answer 1

5+х=77
х= 77-5
х=72
  

2х+1=3
2х=3-1
2х=2
х=1

12-х=-65+6х
х+6х=65+12
7х=77
х=11

5х=65
х=13
х:7=6
х=7*6
х=42

24х+40=160-6х
24х+6х=160-40
30х=120
х=4

Comments

2х+5=17-х

---

3х=12

---

х=4

---

х:7=6

---

х=7*6

---

х=42