If $\;4x+i(3x-y)=3+i (-6)\;$ where x and y are real numbers , then find the values of x and y

Question

$(a)\;\large\frac{23}{4} , \large\frac{3}{4}\qquad(b)\;\large\frac{3}{4} , \large\frac{33}{4}\qquad(c)\;\large\frac{1}{4} , \large\frac{33}{4}\qquad(d)\;\large\frac{3}{4} , \large\frac{13}{4}$