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Lelechka [254]
3 years ago
13

Point M is the midpoint of segment AB. If AM = 50 – 3x and MB = –20 + 4x, find the value of AM AM = -10 AM = 10 AM = -20 AM = 20

Mathematics
2 answers:
alexira [117]3 years ago
8 0
If M is the midpoint of segment AB then |AM| = |MB|
|AM| = 50 - 3x|BM| = -20 + 4x

We have the equation:

50 - 3x = -20 + 4x    |-50
-3x = -70 + 4x    |-4x
-7x = -70    |:(-7)
x = 10
|AM| = 50 - 3x
substitute the value of x:
|AM| = 50 - 3 · 10 = 50 - 30 = 20
Answer: AM = 20

PSYCHO15rus [73]3 years ago
4 0

Answer:

the answer is am=20

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