7a+1=3=18

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Solution for 7a+1=3=18 equation: 



7a+1=3=18

We move all terms to the left:

7a+1-(3)=0

We add all the numbers together, and all the variables

7a-2=0

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

7a=2

a=2/7

a=2/7

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