Răspuns :
x - nr cutiilor cu cate 3 papusi
y- nr. cutiilor cu cate 4 papusi
x=y
x*3 +x*4=56
7*x=56
x=56/8
x=8 cutii
nr total de cutii =8+8 =16
y- nr. cutiilor cu cate 4 papusi
x=y
x*3 +x*4=56
7*x=56
x=56/8
x=8 cutii
nr total de cutii =8+8 =16
x×3+y×4=56
x×3=y×4 => y×4+y×4=56
y×8=56 => y =6 cutii de cate 4 papusi
x =8 cutii de cate 3 papusi ( x×3=24 => x=8)
x×3=y×4 => y×4+y×4=56
y×8=56 => y =6 cutii de cate 4 papusi
x =8 cutii de cate 3 papusi ( x×3=24 => x=8)