B is the midpoint of AC, AB = 3x - 8 and BC = x + 4. Find AB

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asked Mar 26, 2017 54.9k views

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B is the midpoint of AC, AB = 3x - 8 and BC = x + 4. Find AB

Mathematics
high-school

Somi Meer asked

by Somi Meer

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since b is the midpoint BC is half the line so we can set up this equation

x+4+X+4=3x-8

and then solve like normal

2x+8=3x-8

16=x

once you have x then solve x+4

16 + 4 =20

AB is 20

Hya answered Apr 2, 2017

by Hya

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