Question

If T is the midpoint of SU, find the values of x and ST

Answer 1

9x=4x+25
5x=25
X=5
9(5)
ST=45

Answer 2

T is the midpoint of the line, meaning that in line SU, line ST and line TU are of equal length, since T is at the middle of the line.

`9x=4x+25`

`5x=25`

`x=5`

`ST=9x`

`ST=9*5`

`ST=45`

Hope this helps. 頑張って!