👤

calculeaza a+b stiind ca :a=21:7*2= si b=81:9+5=

Răspuns :

a+b=
a=21:7x2
a=6

b=81:9+5
b=14

a+b=
6+14=20

a=21:7*2=6
b=81:9+5=14
a+b=6+14=20