22-08-2017
Mathematics

contestada

The value of x
AB=
BC=
AC=

The value of x AB BC AC class=

Respuesta :

kphung76127 kphung76127

22-08-2017

If B is the midpoint, AB and BC must be of equal length.

12x-12=4x+28

Subtract 4x from both sides
8x-12= 28

Add 12 to both sides
8x= 40

Divide both sides by 8
x=5 <======

Now plug in this value of x
12(5)-12= 60-12 = 48 <========

4(5)+28= 20+28= 48 <=======

Add the values to get AC
48+48= 96 <======

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