1-3=7x

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Solution for 1-3=7x equation: 



1-3=7x

We move all terms to the left:

1-3-(7x)=0

We add all the numbers together, and all the variables

-7x-2=0

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

-7x=2

x=2/-7

x=-2/7

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