Question

ajutor la ex. 16,17,18....dau coroana.

Answer 1

16)300-200=100
400-100=200+100(varianta D)

17d+r+34=60
d+r=60-34
d+r=26
d=9+3=12 ani
r=26-12=14 ani(varianta d)

18)x+150=365
350-150-150=65(varianta b)

Answer 2

16 -D
17-D
18-B

16. y-banii Ioanei
x-banii lu sara
x -100 lei =300 lei ;x=400 lei
y+100 lei=300 lei ;y=200 lei

17. x-varsra lu doru
y-varsta lu raul
x+y+34=60
x-3=9
y=?
x=12
y =14
18. x-numarul
x+150 =365
x-150= ?
x=65