# Find dx/dt x=3t

Differentiate both sides of the equation.
The derivative of with respect to is .
Differentiate the right side of the equation.
Since is constant with respect to , the derivative of with respect to is .
Differentiate using the Power Rule which states that is where .
Multiply by .
Reform the equation by setting the left side equal to the right side.
Replace with .
Find dx/dt x=3t