[tex]\bf 2.25-11j-7.75+1.5j=0.5j-1\qquad
\begin{array}{rllll}
-7.75\\
2.25\\
---\\
-5.50
\end{array}\qquad
\begin{array}{rllll}
-11.0j\\
1.5j\\
---\\
-9.5j
\end{array}
\\\\\\
-9.5j-5.5=0.5j-1\implies -9.5j-0.5j=5.5-1
\\\\\\
\begin{array}{rllll}
-9.5j\\
-0.5j\\
---\\
-10.0j
\end{array}\qquad
\begin{array}{rllll}
5.5\\
-1.0\\
---\\
4.5
\end{array}\implies -10j=4.5\implies j=\cfrac{4.5}{-10}
\\\\\\
j=-0.45[/tex]
