4x+9x=xy

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Solution for 4x+9x=xy equation: 


Simplifying
4x + 9x = xy

Combine like terms: 4x + 9x = 13x
13x = xy

Solving
13x = xy

Solving for variable 'x'.

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

Add '-1xy' to each side of the equation.
13x + -1xy = xy + -1xy

Combine like terms: xy + -1xy = 0
13x + -1xy = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(13 + -1y) = 0


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 '(13 + -1y)' equal to zero and attempt to solve:

Simplifying
13 + -1y = 0

Solving
13 + -1y = 0

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

Add '-13' to each side of the equation.
13 + -13 + -1y = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -1y = 0 + -13
-1y = 0 + -13

Combine like terms: 0 + -13 = -13
-1y = -13

Add 'y' to each side of the equation.
-1y + y = -13 + y

Combine like terms: -1y + y = 0
0 = -13 + y

Simplifying
0 = -13 + y

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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