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a fost răspuns

95;4*149+4099-1798=
(9000-89*39)+(4780-275 *15)=
2 exercitu 2 afla numarul necunoscut 674* 4-a=1728 9000-375*15+b=7134 c-(85;5*172)=3985

Răspuns :

Spidie
95:4*149+4099-1798= 95:4*149+2301=3538,75+2301=5839,75

(9000-89*39)+(4780-275 *15)= (9000-3471)+(4780-4125)=
=5529+655=6184

 
674* 4-a=1728
2696-a=1728
a=2696-1728
a=968

9000-375*15+b=7134
9000-5625+b=7134
3375+b=7134
b=7134-3375
a=3759

c-(85:5*172)=3985
c-(17*172)=3985
c-2924=3985
c=3985+2924
c=6909
















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