Question

dau coroană urgent !!​

Answer 1

Răspuns:

a) 5x-9=16

5x=9+16

5x=22

x=22:5

x=4,4

b)7x=21

x=21:7

x=3

C)9+x=1

x=9-1

x=8

d)x-3=1-2

x=3+1-2

x=4-2

x=2