21d(y-v)+6x(y-v)=0

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Solution for 21d(y-v)+6x(y-v)=0 equation:


Simplifying
21d(y + -1v) + 6x(y + -1v) = 0

Reorder the terms:
21d(-1v + y) + 6x(y + -1v) = 0
(-1v * 21d + y * 21d) + 6x(y + -1v) = 0
(-21dv + 21dy) + 6x(y + -1v) = 0

Reorder the terms:
-21dv + 21dy + 6x(-1v + y) = 0
-21dv + 21dy + (-1v * 6x + y * 6x) = 0
-21dv + 21dy + (-6vx + 6xy) = 0

Solving
-21dv + 21dy + -6vx + 6xy = 0

Solving for variable 'd'.

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

Add '6vx' to each side of the equation.
-21dv + 21dy + -6vx + 6vx + 6xy = 0 + 6vx

Combine like terms: -6vx + 6vx = 0
-21dv + 21dy + 0 + 6xy = 0 + 6vx
-21dv + 21dy + 6xy = 0 + 6vx
Remove the zero:
-21dv + 21dy + 6xy = 6vx

Add '-6xy' to each side of the equation.
-21dv + 21dy + 6xy + -6xy = 6vx + -6xy

Combine like terms: 6xy + -6xy = 0
-21dv + 21dy + 0 = 6vx + -6xy
-21dv + 21dy = 6vx + -6xy

Reorder the terms:
-21dv + 21dy + -6vx + 6xy = 6vx + -6vx + -6xy + 6xy

Combine like terms: 6vx + -6vx = 0
-21dv + 21dy + -6vx + 6xy = 0 + -6xy + 6xy
-21dv + 21dy + -6vx + 6xy = -6xy + 6xy

Combine like terms: -6xy + 6xy = 0
-21dv + 21dy + -6vx + 6xy = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-7dv + 7dy + -2vx + 2xy) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-7dv + 7dy + -2vx + 2xy)' equal to zero and attempt to solve: Simplifying -7dv + 7dy + -2vx + 2xy = 0 Solving -7dv + 7dy + -2vx + 2xy = 0 Move all terms containing d to the left, all other terms to the right. Add '2vx' to each side of the equation. -7dv + 7dy + -2vx + 2vx + 2xy = 0 + 2vx Combine like terms: -2vx + 2vx = 0 -7dv + 7dy + 0 + 2xy = 0 + 2vx -7dv + 7dy + 2xy = 0 + 2vx Remove the zero: -7dv + 7dy + 2xy = 2vx Add '-2xy' to each side of the equation. -7dv + 7dy + 2xy + -2xy = 2vx + -2xy Combine like terms: 2xy + -2xy = 0 -7dv + 7dy + 0 = 2vx + -2xy -7dv + 7dy = 2vx + -2xy The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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