faceți ce puteți vă rog repedeeeeeee❤❤
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2.
[tex]a=31\cdot 75=2325\\b=\frac{2\cdot2325}{3} =1550\\c=\frac{\left(2325-1550\right)3}{25}=91[/tex]
3.
[tex]a+b=14\\a-b=\frac{14}{3.2}\\\\a=9.1875,\:b=4.8125[/tex]