👤

32:8+3X(60+8X(360:a-72:4)]=712

Răspuns :

4+3×[60+8×(360:a-18)]=712
3×[60+8×(360:a-18)]=712-4=708
[60+8×(360:a-18)]=708:3=236
8+(360:a-18)=236-60=176
(360:a-18)=176-8=168
360:a=168+18=186
a=360×186
a=66960