Question

dau coroana exercitile care nu sunt rezolvate​

Answer 1

a-105×17=2378

a-1785=2378

a=2378+1785

a=4163

58×97-a=1978

5626-a=1978

a=5626-1978

a=3648

a×9+362=443

a×9=443-362

a×9=81

a=81:9

a=9

582-7×a=533

7×a=582-533

7×a=49

a=49:7

a=7

_____________________

1000-(28:4×25)+(19×3-39)=

1000-(7×25)+(57-39)=

1000-175+18=

825+18=843

_____________________

[4×(5×12-6×5)-5×4]:10-2×(12×3-9×4)=

[4×(60-30)-20]:10-2×(36-36)=

(4×30-20):10-2×0=

(120-20):10-0=

100:10-0=

10-0=10

________________________

a-(189+43×27-9×8×4)+327×28=11002

a-(189+1161-288)+9156=11002

a-(1350-288)+9156=11002

a-1062+9156=11002

a-1062=11002-9156

a-1062=1846

a=1846+1062

a=2.908