21xy+(-9xy)=

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Solution for 21xy+(-9xy)= equation: 


Simplifying
21xy + (-9xy) = 0

Combine like terms: 21xy + (-9xy) = 12xy
12xy = 0

Solving
12xy = 0

Solving for variable 'x'.

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

Divide each side by '12'.
xy = 0

Simplifying
xy = 0

The solution to this equation could not be determined.

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