21x-19=21x-19

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Solution for 21x-19=21x-19 equation:


Simplifying
21x + -19 = 21x + -19

Reorder the terms:
-19 + 21x = 21x + -19

Reorder the terms:
-19 + 21x = -19 + 21x

Add '19' to each side of the equation.
-19 + 19 + 21x = -19 + 19 + 21x

Combine like terms: -19 + 19 = 0
0 + 21x = -19 + 19 + 21x
21x = -19 + 19 + 21x

Combine like terms: -19 + 19 = 0
21x = 0 + 21x
21x = 21x

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

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

Combine like terms: 21x + -21x = 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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