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Nostrana [21]
3 years ago
5

Please help i have no idea with this lesson

Mathematics
2 answers:
Scilla [17]3 years ago
4 0
ABD-CBD=ABC

The whole minus one part equals the other part

70-30=40
sergey [27]3 years ago
3 0

Answer:

40

Step-by-step explanation:

ABD-CBD=ABD

70-30=40

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When I look at a problem like this, I think of the FOIL method. This method states "You multiply integers in the order of First, Outside, Inside, Last, and then add them  together"

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This would be your answer in simplest form!
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