3a-12=1.5

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Solution for 3a-12=1.5 equation: 



3a-12=1.5

We move all terms to the left:

3a-12-(1.5)=0

We add all the numbers together, and all the variables

3a-13.5=0

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

3a=13.5

a=13.5/3

a=4+1/2

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