Question

22,23 va rog dau coroana

Answer 1

Răspuns:

ex.22 "A",   ex.23 a=289, a=9, r=227

Explicație pas cu pas:

ex. 22:

y×2=(7-4÷4)×3=(7-1)×3=6×3=18

y=18÷2=9

z×6=16÷4×2-0×99+3×3+1=8+9+1=18

z=18÷6=3

y=3×z=3×3=9

ex. 23:

194×3+200-a=493

582-a=493-200

582-a=293

-a=293-582= -289

a=289

(104×4+83×5)-a×3=8×100+36÷9

416+415-a×3=804

-a×3=804-831= -27

-a= -27÷3= -9

a=9

(138×5-21÷7-300×2)-9×9-r×2=2

(690-3-150)-81-r×2=2

537-81-r×2=2

-81-r×2=2-537= -535

-r×2= -535+81= -454

-r= -454÷2= -227

r=227