2a-11a-12a=19

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Solution for 2a-11a-12a=19 equation: 



2a-11a-12a=19

We move all terms to the left:

2a-11a-12a-(19)=0

We add all the numbers together, and all the variables

-21a-19=0

We move all terms containing a to the left, all other terms to the right

-21a=19

a=19/-21

a=-19/21

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