Explicație pas cu pas:
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a) (x+396):4=185
x+396=185×4
x+396=740
x=740-396
x=344✅
b) 786+a:18=1416
a:18=1416-786
a:18=630
a=630×18
a=11340✅
c) [(b+27)×2-325]×3=1047
(b+27)×2-325=1047:3
(b+27)×2-325=349
(b+27)×2=349+325
(b+27)×2=674
b+27=674:2
b+27=337
b=337-27
b=310✅
Succes !!;)