7x*3y=21xy

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Solution for 7x*3y=21xy equation: 


Simplifying
7x * 3y = 21xy

Reorder the terms for easier multiplication:
7 * 3x * y = 21xy

Multiply 7 * 3
21x * y = 21xy

Multiply x * y
21xy = 21xy

Add '-21xy' to each side of the equation.
21xy + -21xy = 21xy + -21xy

Combine like terms: 21xy + -21xy = 0
0 = 21xy + -21xy

Combine like terms: 21xy + -21xy = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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