2a-9=2a-9

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Solution for 2a-9=2a-9 equation:


Simplifying
2a + -9 = 2a + -9

Reorder the terms:
-9 + 2a = 2a + -9

Reorder the terms:
-9 + 2a = -9 + 2a

Add '9' to each side of the equation.
-9 + 9 + 2a = -9 + 9 + 2a

Combine like terms: -9 + 9 = 0
0 + 2a = -9 + 9 + 2a
2a = -9 + 9 + 2a

Combine like terms: -9 + 9 = 0
2a = 0 + 2a
2a = 2a

Add '-2a' to each side of the equation.
2a + -2a = 2a + -2a

Combine like terms: 2a + -2a = 0
0 = 2a + -2a

Combine like terms: 2a + -2a = 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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