Respuesta :

Answer:

17

Step-by-step explanation:

SQ bisects TSR into TSQ and RSQ

TSR=84

Half of 84 is 42.

RSQ=3x-9=42

3x-9=42

x=17

Answer:

17

Step-by-step explanation:

because we know that TSR=84

and RSQ was half of TSR, so we will do 84/2. Then you will got 42 for the RSQ

Then we will do something like this

42=3x-9

42+9=51

51/3=17

SO, x=17

Hope this help!!!