Isolate the variable, I would add d to both sides, creating 4<4+d+d or 4<4+2d
then subtract 4,
0<2d
d>0
Answer:
0,3
Step-by-step explanation:
(-3+3)/2, (6+0)/2
B


b=

Where k is a constant of proportionality.
b=18, c=4,d=9, e=6
Finding the value f k,
18=

6k=18
k=3
The equation then is;
b=

The constant of variation=3



Be carefully, normally there is no a in your expression. I think you made a mistake.
Hope this helps !
Photon
The answer is about 19049