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natima [27]
3 years ago
12

Who is correct chris or sam

Mathematics
2 answers:
Nastasia [14]3 years ago
7 0
The answer is Lacey :)
Advocard [28]3 years ago
4 0
Lacey, because you have to do the opposite when you want to get rid of a number. She subtracted 20 because it was originally positive 20. Chris messed up and did not do the opposite, subtraction, and instead he added 20
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