Answer:
1. x-9
2. 2x-7
3. 4x-9y
4. 5x-1
5. 9x-20y^2
Step-by-step explanation:
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Answers & Comments
Answer:
1. x-9
2. 2x-7
3. 4x-9y
4. 5x-1
5. 9x-20y^2
Step-by-step explanation: