Răspuns :
[tex] \frac{a}{6} = \frac{a}{10} =2
[/tex]
[tex]a= \frac{3a}{5} +12[/tex]
[tex]a- \frac{3a}{5} =12 5a-3a=60 2a=60 a=60/2 a=30[/tex]
[tex]a= \frac{3a}{5} +12[/tex]
[tex]a- \frac{3a}{5} =12 5a-3a=60 2a=60 a=60/2 a=30[/tex]