isaacelias410 isaacelias410

22-05-2021
Mathematics

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I need help i am very confused

I need help i am very confused class=

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Аноним Аноним

22-05-2021

9+12=m or 9+12=21

this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.

if we check our work we will see this

9+12=21

9+12=21

m-9=12

21-9=12

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