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Airida [17]
3 years ago
6

Please answer! (1) what mistake was made? (2) what suggestion could help avoid that?

Mathematics
1 answer:
AveGali [126]3 years ago
3 0

Answer:

1) the signs of the numbers is not in standard form

2) always make sure that the signs of the two equations is standarised and then solve

please follow me

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