Answer:
In explanation
Step-by-step explanation:
Using f(x), we can work backwards to find x:
15 = 2x-3
18=2x
x=9
9=x
p=7
2 (5p-4)=3p-7
(10p-8)=3p-7
10p=3p+1
7p=1
AB=2r
BC=7
AC=AB+BC
-5=2r+7
-12=2r
-6=r
AB=-12
everything can be found in the picture
