2b-9=2b-9

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


Simplifying
2b + -9 = 2b + -9

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

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

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

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

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

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

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

Combine like terms: 2b + -2b = 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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