Can you please check if everything is correct $,$ and tell me how to deal with cutrent sources when using nodal analysis $?($ how to complete the green equation in nodal anaylsis $)$

Using nodal analysis:

Using mesh analysis :

$.$ Super node :

it $V_8-V_7=6$

$\frac{V_5-V_6}{12}+\frac{V_5-V_4}{3}+?!$

$27V_1-V_8=13$

$V_2-0=6V{V}_2=6V$

$V_8-0=2V_x$

$\frac{V_3-V_2}{6}+\frac{V_3-V_4}{3}=0$

$V_8=2(V_2-V_3),.V_4-0=2V_4=2$

$V_8=2V_2-2V_3,*V_6-0=36V_6=36$

$47(\frac{v_1}{18})+\frac{v_1-v_2}{7}=0$

$(\frac{1}{18}+\frac{1}{7})v_1-(\frac{1}{7}{v}_2)=0$

super mesh:

$i_5-i_6=5i_2$

$21-36+12(i_5)+3i6+2=0,\mathrm{.}18(i_1-i_3)-6+7i_3=0$

$12i_5+3i6=34,11i_3=6$

$\mathrm{.}6+6i_2+36-2(-6i_4)=0,*6-2+3i_4+6i_4=0$

$6i_2+12i_4=-42,i_4=-\frac{4}{9}A$

$2(-6i_4)+18(i_1-i_3)+13=0$

$18i_1-18i_3-12i_4=-13$