12a-5-8a=-1

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Solution for 12a-5-8a=-1 equation: 



12a-5-8a=-1

We move all terms to the left:

12a-5-8a-(-1)=0

We add all the numbers together, and all the variables

4a-4=0

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

4a=4

a=4/4

a=1

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