8xy+4yz-7zx,6yz+11zx-6y And -5xz+6x-2yx additi
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Answer:
Step-by-step explanation:
+
8
x
y
+
4
y
z
−
7
z
x
+
6
y
z
+
11
z
x
−
6
y
−
2
x
y
−
5
x
z
+
6
x
__________________________________
6
x
y
+
10
y
z
−
x
z
+
6
x
−
6
y
__________________________________
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