Question
Solve the equation
Solve for x
Solve for y
Solve for z
x=yz36z2
Evaluate
3x3y3z=18
Rewrite the expression
3y3zx3=18
Divide both sides
3y3z3y3zx3=3y3z18
Divide the numbers
x3=3y3z18
Cancel out the common factor 3
x3=y3z6
Take the 3-th root on both sides of the equation
3x3=3y3z6
Calculate
x=3y3z6
Solution
More Steps

Evaluate
3y3z6
To take a root of a fraction,take the root of the numerator and denominator separately
3y3z36
Simplify the radical expression
More Steps

Evaluate
3y3z
Rewrite the expression
3y3×3z
Simplify the root
y3z
y3z36
Multiply by the Conjugate
y3z×3z236×3z2
Calculate
yz36×3z2
The product of roots with the same index is equal to the root of the product
yz36z2
x=yz36z2
Show Solution

Find the partial derivative
Find ∂x∂z by differentiating the equation directly
Find ∂y∂z by differentiating the equation directly
∂x∂z=−x3z
Evaluate
3x3y3z=18
Find ∂x∂z by taking the derivative of both sides with respect to x
∂x∂(3x3y3z)=∂x∂(18)
Use differentiation rule ∂x∂(f(x)×g(x))=∂x∂(f(x))×g(x)+f(x)×∂x∂(g(x))
∂x∂(3x3y3)z+3x3y3×∂x∂(z)=∂x∂(18)
Evaluate
More Steps

Evaluate
∂x∂(3x3y3)
Use differentiation rule ∂x∂(cf(x))=c×∂x∂(f(x))
3y3×∂x∂(x3)
Use ∂x∂xn=nxn−1 to find derivative
3y3×3x2
Multiply the terms
9x2y3
9x2y3z+3x3y3×∂x∂(z)=∂x∂(18)
Evaluate
9zx2y3+3x3y3×∂x∂(z)=∂x∂(18)
Evaluate
9zx2y3+3x3y3∂x∂z=∂x∂(18)
Find the partial derivative
9zx2y3+3x3y3∂x∂z=0
Move the expression to the right-hand side and change its sign
3x3y3∂x∂z=0−9zx2y3
Removing 0 doesn't change the value,so remove it from the expression
3x3y3∂x∂z=−9zx2y3
Divide both sides
3x3y33x3y3∂x∂z=3x3y3−9zx2y3
Divide the numbers
∂x∂z=3x3y3−9zx2y3
Solution
More Steps

Evaluate
3x3y3−9zx2y3
Cancel out the common factor 3
x3y3−3zx2y3
Reduce the fraction
xy3−3zy3
Reduce the fraction
x−3z
Use b−a=−ba=−ba to rewrite the fraction
−x3z
∂x∂z=−x3z
Show Solution
