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1) (X:3×4+76):100×7=28
2) [(549:x-3):9]:4+249=320
Am nevoie de ajutor!


Răspuns :

1) ( X:3 *4 +76) :100= 28:7
(X:3*4+76) :100=4
X:3 *4+76 =100*4=400
X:3 *4 =400-76= 324
X:3= 324:4= 81
X=81*3
X=243

2)  (549:x-3):4= 320- 249=71
549:x-3= 71*4=284
549 :x= 284+3= 287
x=549:287= 1,912 
Sper ca te-am ajutat