Question 1202655: B es el punto medio del segmento de línea AC. Si AB = 3x - 8 y BC = x + 12, encuentra el valor de x. Found 2 solutions by ikleyn, Edwin McCravy:Answer by ikleyn(52817) (Show Source):
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B es el punto medio del segmento de línea AC.
Si AB = 3x - 8 y BC = x + 12, encuentra el valor de x.
Google translation to English
B is the midpoint of line segment AC.
If AB = 3x - 8 and BC = x + 12, find the value of x.
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Since B is the midpoint, we have AB = BC.
It is the same as this equation
3x - 8 = x + 12.
Simplify and find x
3x - x = 12 + 8
2x = 20
x = 20/2 = 10.
ANSWER. x = 10.
Solved.
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Aquí hay otro exactamente igual, usando números diferentes:
B es el punto medio del segmento de línea AC. Si AB = 5x - 15 y BC = 2x + 21, encuentra el valor de x.
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A 5x-15 B 2x+21 C
5x - 15 = 2x + 21
+ 15 + 15
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5x = 2x + 36
-2x -2x
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3x = 36
x = 12
Ahora haz tu problema con tus números.
Edwin
