Answer:
-12u + 11z
Explanation:
The above expression cannot be simplified, for:
1) There is no common variable (one being u, and the other being z).
2) There are no common factors in between 12 & 11)
- Factors of 12: 1, 2, 3, 4, 6, 12
- Factors of 11: 1, 11
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