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Dmitrij [34]
4 years ago
5

Answer this question do not take long

Mathematics
1 answer:
STatiana [176]4 years ago
7 0

Answer:

BD = 78

x = 7

Step-by-step explanation:

As we can see, BC plus CD will be equal to BD. That means we can set up the equation 6x+15+3x = 10x+8. First, we combine like terms to get 9x+15 = 10x+8. Then we can subtract 9x from both sides, to get 15 = x+8. We then subtract 8 from both sides to get x = 7. Since x = 7, we can plug in x for the equation given for BD, 10(7)+8. This will come out to 78.

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Step-by-step explanation:

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