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san4es73 [151]
3 years ago
5

Help pleaseeeee ?????????????

Mathematics
1 answer:
storchak [24]3 years ago
6 0

Answer:

CD = BD - BC\\

So, let's solve now

CD = BD - BC\\5x-9 = (7x -10 )-(4x-29)

Before solving this we have to know that,

(-)*(-)=(+)\\(+)*(+)=(+)\\(-)*(+)=(-)

Now let's solve for x

CD = BD - BC\\5x-9 = (7x -10 )-(4x-29)\\5x-9=7x-10-4x+29\\5x-9=3x+19\\5x-3x=9+19\\2x=28\\\frac{2x}{2} = \frac{28}{2}\\x = 14

CD = 5x-9\\       = 5*14-9\\=70-9\\=61

BD = 7x-10\\=7*14-10\\=98-10\\=88

BC =4x-29\\=4*14-29\\=56-29\\=27

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6 0
4 years ago
Read 2 more answers
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