7d(3d-1)=0

Solution for 7d(3d-1)=0 equation:

Simplifying
7d(3d + -1) = 0

Reorder the terms:
7d(-1 + 3d) = 0
(-1 * 7d + 3d * 7d) = 0
(-7d + 21d2) = 0

Solving
-7d + 21d2 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), '7d'.
7d(-1 + 3d) = 0

Ignore the factor 7.
Subproblem 1
Set the factor 'd' equal to zero and attempt to solve:

Simplifying
d = 0

Solving
d = 0

Move all terms containing d to the left, all other terms to the right.

Simplifying
d = 0
Subproblem 2
Set the factor '(-1 + 3d)' equal to zero and attempt to solve:

Simplifying
-1 + 3d = 0

Solving
-1 + 3d = 0

Move all terms containing d to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + 3d = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 3d = 0 + 1
3d = 0 + 1

Combine like terms: 0 + 1 = 1
3d = 1

Divide each side by '3'.
d = 0.3333333333

Simplifying
d = 0.3333333333
Solution
d = {0, 0.3333333333}