Answer:
[tex]x=\dfrac{d}{(5+10f)}[/tex]
Step-by-step explanation:
The given equation is :
d = 5x + 10xf
We need to solve the above equation for x.
Taking x common from RHS,
d=x(5+10f)
Dividing both sides by (5+10f),
[tex]x=\dfrac{d}{(5+10f)}[/tex]
Hence, this is the required value of x.