Question

ajutati-ma repede:
(x:3-3)x9=306;
(x:2)x3=30x3;
909:9-(9x9:x-9)=101;
(7x9-x-5)-9:3=20;
si x:2+45-25:(36-99:9)=73

Answer 1

(x;3-3)x9=306
x;3-3=306;9
x:3=34+3
x=37*3
x=111
 (x:2)x3=30x3
 x:2=90:3
x=30x2
x=60
  909:9-(9x9:x-9)=101
101-(81:x-9)=101
-(81:x-9)=101-101
-81:x=-9
x=81;9 
x=9
(7x9-x-5)-9:3=20
63-x-5-3=20
-x=20-55
x=35
x:2+45-25:(36-99:9)=73
x:2-25:(36-11)=73-45
x:2-25:25=28
x:2=28+1
x=29x2
x=58