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30-08-2017
Mathematics

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Find the value of x if B is between A and C AB=4x-9 BC= 3x+5 and AC = 17

Respuesta :

06-09-2017

We are assuming A, C and B are on the same line segment AC, of length 17, with B a point in the segment.

|AC|=|AB|+|BC|

17= (4x-9)+(3x+5)

17= (4x+3x)+(-9+5)

17=7x-4

7x=17+4

7x=21

x=21/7=3

Answer: x=3

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