Answer:
2x+23+x+21=14
3x+44=14
3x+44-44=14-44
3x=-30
3x÷3=-30÷3
x=-10
SR=2x+23
(2*-10)+23
-20+23
3
SR=3
Explanation:
14 is the length of the line
so we add equation of SR and RQ to get full line equation
search for x
the answer is x=-10
Then, substitute -10 for x in 2x+23 to find out the length for SR
you'll get the answer 3