4x(9x-7y)=

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Solution for 4x(9x-7y)= equation: 


Simplifying
4x(9x + -7y) = 0
(9x * 4x + -7y * 4x) = 0

Reorder the terms:
(-28xy + 36x2) = 0
(-28xy + 36x2) = 0

Solving
-28xy + 36x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4x'.
4x(-7y + 9x) = 0

Ignore the factor 4.

Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(-7y + 9x)' equal to zero and attempt to solve:

Simplifying
-7y + 9x = 0

Reorder the terms:
9x + -7y = 0

Solving
9x + -7y = 0

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

Add '7y' to each side of the equation.
9x + -7y + 7y = 0 + 7y

Combine like terms: -7y + 7y = 0
9x + 0 = 0 + 7y
9x = 0 + 7y
Remove the zero:
9x = 7y

Divide each side by '9'.
x = 0.7777777778y

Simplifying
x = 0.7777777778y
Solution
x = {0, 0.7777777778y}

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