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iren [92.7K]
3 years ago
5

IF DF = 114, DE = 7x + 9, and EF = 9x + 9, find EF.

History
1 answer:
Alex787 [66]3 years ago
8 0

Answer:

EF = 63

Explanation:

DE + EF = DF

7x + 9 + 9x + 9 = 114

16x + 18 = 114

16x = 96

x = 6

EF = 9(6) + 9

EF = 54 + 9

EF = 63

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