3a-4=12

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Solution for 3a-4=12 equation:



3a-4=12
We move all terms to the left:
3a-4-(12)=0
We add all the numbers together, and all the variables
3a-16=0
We move all terms containing a to the left, all other terms to the right
3a=16
a=16/3
a=5+1/3

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