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[tex]0.4x - 1intreg \: si \: 2 \: pe \: 5 = - 2.44[/tex]


Răspuns :

0,4x-1/1*2/5=-2,44

4x/10-2/5=-244/100

4x/10-4/10=-244/100

-x/10=-244/100

-10x/100=-244/100

-10x=-244

x=24,4