Use the Figure below
4a+5 2a-6
X__________________Y___________Z
XZ = 20
a. What is a
b. What is the length of segment XY?
c. What is the length of segment YZ
is Y the midpoint of segment XZ? in other words, are segments XY and YZ equal to each other?
No
So do you think you can help me solve it?
oh and the 2a-6 is suppose to be between YZ on the line but it got moved when i hit submit
first, add both segments together: (combine like terms)
(4a+5)+ (2a-6)=
6a-1
And because 6a-1 is the whole segment, make it equal to 20.
6a-1=20
6a=21
a=3.5
Now you have to substitute... can you take it from here?
(this is what i got. but please remember that i'm not a geometry teacher, just a student who happens to be learning the same thing.)