(3a-9)(9-9)=0

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Solution for (3a-9)(9-9)=0 equation: 


Simplifying
(3a + -9)(9 + -9) = 0

Reorder the terms:
(-9 + 3a)(9 + -9) = 0

Combine like terms: 9 + -9 = 0
(-9 + 3a)(0) = 0

Reorder the terms for easier multiplication:
0(-9 + 3a) = 0

Anything times zero is zero.
0(-9 + 3a) = 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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