-20a+12a+11a=9

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Solution for -20a+12a+11a=9 equation: 


Simplifying
-20a + 12a + 11a = 9

Combine like terms: -20a + 12a = -8a
-8a + 11a = 9

Combine like terms: -8a + 11a = 3a
3a = 9

Solving
3a = 9

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by '3'.
a = 3

Simplifying
a = 3

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