👤
Mc028720
a fost răspuns

Rezolvati ecuatia:
a) (7+9+11)x=341×3
b)13x+567=623
c)18x-297=27​

Răspuns :

Andriana86

Răspuns:

a)(7+9+11)x=341×3

x=7+9+11

x=27

27x=341×3

27x=1023

x=1023:27

x=37,8

13x+567=623

13x=623-567

13x=56

x=56:13

x=4,3

18x-297=27

18x=27-297

18x=-270

x=-270:18

x=-15