3a-a-a+1=18

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Solution for 3a-a-a+1=18 equation: 



3a-a-a+1=18

We move all terms to the left:

3a-a-a+1-(18)=0

We add all the numbers together, and all the variables

a-17=0

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

a=17

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