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lina2011 [118]
3 years ago
7

Please help me with this question

Mathematics
1 answer:
lina2011 [118]3 years ago
7 0

Step-by-step explanation:

1. 120+21 =141

2. 21-3=18

3. 7x-21

4. 4x+20

5. 45+100=145

6. 40+5c

7. 20+22r+26s

Im not too sure about the other question

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