12a-8a-4=16

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Solution for 12a-8a-4=16 equation:



12a-8a-4=16
We move all terms to the left:
12a-8a-4-(16)=0
We add all the numbers together, and all the variables
4a-20=0
We move all terms containing a to the left, all other terms to the right
4a=20
a=20/4
a=5

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