2a-6=18

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Solution for 2a-6=18 equation: 



2a-6=18

We move all terms to the left:

2a-6-(18)=0

We add all the numbers together, and all the variables

2a-24=0

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

2a=24

a=24/2

a=12

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