-4x-5x-7xy=

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Solution for -4x-5x-7xy= equation: 


Simplifying
-4x + -5x + -7xy = 0

Combine like terms: -4x + -5x = -9x
-9x + -7xy = 0

Solving
-9x + -7xy = 0

Solving for variable 'x'.

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

Factor out the Greatest Common Factor (GCF), '-1x'.
-1x(9 + 7y) = 0

Ignore the factor -1.

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 '(9 + 7y)' equal to zero and attempt to solve:

Simplifying
9 + 7y = 0

Solving
9 + 7y = 0

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

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

Combine like terms: 9 + -9 = 0
0 + 7y = 0 + -9
7y = 0 + -9

Combine like terms: 0 + -9 = -9
7y = -9

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

Combine like terms: 7y + -7y = 0
0 = -9 + -7y

Simplifying
0 = -9 + -7y

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}

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