Question

va rog rapid!!! dau zece puncte si coroana​

Answer 1

5*x-21:7=4+13

5*x-3=17

5*x=17+3

5*x=20

x=20:5

x=5

13-14:x=18-7

13-14:x=11

14:x=13-11

14:x=2

x=14:2

x=7