Answer:
[tex]x=\frac{10-t}{d}[/tex]
Step-by-step explanation:
[tex]dx + t =10[/tex]
Add [tex]-t[/tex] on both sides.
[tex]dx + t -t=10-t[/tex]
[tex]dx=10-t[/tex]
Divide both sides by [tex]d[/tex].
[tex]\frac{dx}{d} =\frac{10-t}{d}[/tex]
[tex]x=\frac{10-t}{d}[/tex]
