[tex]\\ \tt\longrightarrow \dfrac{3}{6}x-7=\dfrac{2}{6}x-4[/tex]
[tex]\\ \tt\longrightarrow \dfrac{3}{6}x-\dfrac{2}{6}x=-4+7[/tex]
[tex]\\ \tt\longrightarrow \dfrac{1}{6}x=3[/tex]
[tex]\\ \tt\longrightarrow x=6(3)[/tex]
[tex]\\ \tt\longrightarrow x=18[/tex]
