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78-2,42 * (11,5 - 10) = aaaaaaaaaaajjjjjjjjjjjjjjjjjjjjjuuuuuuuuuuuuuuuuutttttttttttttttttttttooooooooooooooorrrrrrrrrrrrrrrr!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Răspuns :

[tex]78-2,42*(11,5-10)=78-2,42*1,5=78-3,63=74,37[/tex]