Modern Geometry

Question

Find the value of y if AC = 3y+5. CB = 4y - 1, AB=9y-12, and point C is between A & B

Answer 1

Hi Minah,

 

 

AC = 3y+5

 

CB =4y-1

 

AB = 9y-12

 

AB = AC + CB

 

9y-12 = 3y+5 +4y-1

 

9y-12 = 7y +4

9y-7y = 4+12

2y = 16

y = 8