3=7x-1

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Solution for 3=7x-1 equation: 



3=7x-1

We move all terms to the left:

3-(7x-1)=0

We get rid of parentheses

-7x+1+3=0

We add all the numbers together, and all the variables

-7x+4=0

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

-7x=-4

x=-4/-7

x=4/7

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