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Sever21 [200]
3 years ago
8

URGENT: Can someone help me solve these problems?

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:

12

Step-by-step explanation:

21=31

31=7+2-3+0=12

This is correct because linear equations mean add subtract divide and multiply instead of finding roots and squares

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