(
5
+
3i
)
+
(
-
107
+
20i
)
=
-
____________________
+
____________________
(
8
+
7i
)
-
(
5
+
2i
)
+
(
6
+
10i
)
=
____________________
+
____________________
(
10
+
3i
)
-
(
20
+
16i
)
=
-
____________________
-
____________________
(
14
+
6i
)
-
(
20
+
16i
)
-
(
1
+
4i
)
=
-
____________________
-
____________________
(
3
+
2i
)
+
(
-
4
+
10i
)
=
-
____________________
+
____________________
(
15
-
17i
)
-
(
10
-
5i
)
=
____________________
+
____________________
