8a-5+9=12

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Solution for 8a-5+9=12 equation: 



8a-5+9=12

We move all terms to the left:

8a-5+9-(12)=0

We add all the numbers together, and all the variables

8a-8=0

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

8a=8

a=8/8

a=1

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