a fost răspuns

completeaza problema:
3b.......2c......155leil
2b.......8c......370leil
_______________ ​

Completeaza Problema 3b2c155leil 2b8c370leil class=

Răspuns :

Irideeaask
3b+2c=155=>2c=155-3b
2b+8c=370
=>2b+4(155-3b)=370=>2b+620-12b=370
2b-12b=370-620=>-10b=-250=>b=25; c= 155-25/2=>c=65