Four different ways to balance this equation
8
I
4
O
9
=
9
I
2
O
6
+
7
I
2
+
9
O
2
4
I
4
O
9
= I
2
O
6
+
7
I
2
+
15
O
2
2
I
4
O
9
= I
2
O
6
+
3
I
2
+
6
O
2
2
I
4
O
9
=
2
I
2
O
6
+
2
I
2
+
3
O
2
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