Question

dana are 20 mere,prune cu 14 mai multe ca mere,iar nuci-restul pina la 78.Cite nuci are Dana?(3 moduri)

Answer 1

20+(20+14)+x=78        x-nucile
20+34+x=78
x=78-54
x=24
20+14=34 prune
20+34=54 mere si prune la un loc
78-54=24 nuci
78-(20+20+14)=
78-54=24 nuci