Răspuns:
a) x = 3/5
b) x = 1/3
c) x = 3/5
Explicație pas cu pas:
22.
a)
[tex]\frac{7}{5} -\frac{8}{5} +x=\frac{2}{5}[/tex]
[tex]-\frac{1}{5} +x =\frac{2}{5}[/tex]
[tex]x=\frac{2}{5} +\frac{1}{5} =\frac{3}{5}[/tex]
b)
[tex]\frac{8}{3} +\frac{4}{3} -x-\frac{3}{3} =\frac{8}{3}[/tex]
[tex]\frac{9}{3} -x=\frac{8}{3}[/tex]
[tex]x=\frac{9}{3} -\frac{8}{3}=\frac{1}{3}[/tex]
c)
[tex]\frac{2}{5} +\frac{2}{5} +\frac{2}{5} -x-\frac{1}{5} =\frac{3}{5}[/tex]
[tex]\frac{5}{5} -x=\frac{3}{5}[/tex]
[tex]x=\frac{5}{5} -\frac{3}{5} =\frac{2}{5}[/tex]
