Question

Aflați x:
5x = 5 supra 3,
1 supra 2• x =3
x• 7 supra 8=21 supra 16
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Answer 1

$5x= \frac{5}{3}  aducand la acelasi numitor abtinem =\ \textgreater \ 15x=5 =\ \textgreater \ x= \frac{15}{5} =3$
$\frac{1}{2x} =3 =\ \textgreater \ 1=6x =\ \textgreater \ x= \frac{1}{6}$
$\frac{7x}{8} = \frac{21}{16} =\ \textgreater \ 14x=21 =\ \textgreater \ x= \frac{21}{14} = \frac{3}{2}$