Ta có:
\(\frac{3x}{2}=\frac{36}{4}\)\(\Leftrightarrow\)\(12x=72\)\(\Rightarrow\)\(x=72:12=6\)
\(\frac{36}{4}=\frac{9}{\left(y+1\right)^2}\)\(\Leftrightarrow\)\(36+\left(y+1\right)^2=36\)\(\Rightarrow\)\(\left(y+1\right)^2=0\)(vô lí)
Vậy x = 6; y\(\in\)tập hợp rỗng