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vladimir1956 [14]
3 years ago
14

If d is the midpoint of ef,ed =3x+1,ef=4x+12 find ed

Mathematics
1 answer:
adoni [48]3 years ago
3 0
Since the line contains a midpoint, both sides of the line will be equal each other and exactly one half of the entire line

so basically ed = df
and ed + df = ef

first, we find the value of x
2(3x + 1) = 4x + 12
6x + 2 = 4x + 12
2x = 10
x = 5

plug x back into the equation for ef
4(5) + 12 = ef
20 + 12 = ef
32 = ef






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