1a+3a-2-7a=0

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Solution for 1a+3a-2-7a=0 equation: 



1a+3a-2-7a=0

We add all the numbers together, and all the variables

-3a-2=0

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

-3a=2

a=2/-3

a=-2/3

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