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3) Find the value of x if B is between A and C. Then find
the length of AC. AB = 2x; BC = x - 1; AC = 5x - 7

3 Find the value of x if B is between A and C Then find the length of AC AB 2x BC x 1 AC 5x 7 class=

Respuesta :

X = 3

AC = 8

explanation:

to find the value of x:

set AB + BC = AC
2x + x - 1 = 5x - 7
x = 3

to find the value of AC:

plug in x (3) into the AC expression
5(3) - 7 = ?
AC = 8

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