[tex]4\cdot\dfrac{1}{5}+\dfrac{2}{3}\cdotx=6\cdot\dfrac{13}{15}~~~\Rightarrow simplifici~6~si~15~cu~3[/tex]
[tex]\dfrac{4}{5}+\dfrac{2}{3}x=2\cdot\dfrac{13}{5}[/tex]
[tex]\dfrac{4}{5}+\dfrac{2}{4}x=\dfrac{26}{5}~~~\Rightarrow amlplifici~pentru~a~ajunge~la~acelasi~numitor~care~este~15[/tex]
[tex]12+10x=78[/tex]
[tex]10x=78-12[/tex]
[tex]10x=66[/tex]
[tex]x=\dfrac{66}{10}~~~simplifici~66~si~10~cu~2[/tex]
[tex]x=\dfrac{33}{5}~~~~~~~~~~\big{(}x=33:5=6,6\big{)}[/tex]
