-12=1-8a+3

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Solution for -12=1-8a+3 equation: 



-12=1-8a+3

We move all terms to the left:

-12-(1-8a+3)=0

We add all the numbers together, and all the variables

-(-8a+4)-12=0

We get rid of parentheses

8a-4-12=0

We add all the numbers together, and all the variables

8a-16=0

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

8a=16

a=16/8

a=2

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