👤

(6-30:a+5×5):5=5
(13-3×4)×18:6=6-a:9


Răspuns :

(6-30:a+5*5):5=5
(6-30:a+25)=5*5=25
(6-30:a)=25-25=0
(30:a)=6
a=30:6=5

(6-30:a+5x5):5=5
(6-30:a+25)=5x5
6-30:a+25=25
6-30:a=25-25
6-30:a=0
30:a=6+0
30:a=6
a=30:6
a=5