Răspuns :
3a+4b=40
a=2b
3*2b+4b=40
6b+4b=40
10b=40
b=4lei amandina
a=2*4
a=8lei ciocolata
3*8+4*4=24+16=40
a=2b
3*2b+4b=40
6b+4b=40
10b=40
b=4lei amandina
a=2*4
a=8lei ciocolata
3*8+4*4=24+16=40
1.Cat costa o ciocolata ?.
40:3=10 lei iar 3 ciocolate costa 30 lei
40:3=10 lei iar 3 ciocolate costa 30 lei