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Calculați:A (2× x -3)× 2,125=6,8
B 2×(x-4,01)-5,17=1,37


Răspuns :

[(305000-105000):100ori2:4+9000]:10000
A 2x-3=6,8:2,125
2x-3=3,2
2x=3,2+3
2x=6,2
x=6,2:2
x=3,1

B 2×(x-4,01)=1,37+5,17
x-4,01=6,54:2
x=3,27+4,01
x= 7,28


sper ca team ajutat☺