can you calculate the loop current using Cramers method? with $4$x$4$ matrix and can you also show the steps of calculations?$($especially$,$ can determinants be step by step $?)$

R$1=4$ ohm

R$2=2$ ohm

R$3=2$ ohm

R$4=8$ ohm

R$5=4$ ohm

First source $3$A

Second source $4$A