x+3=7x+4

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Solution for x+3=7x+4 equation: 



x+3=7x+4

We move all terms to the left:

x+3-(7x+4)=0

We get rid of parentheses

x-7x-4+3=0

We add all the numbers together, and all the variables

-6x-1=0

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

-6x=1

x=1/-6

x=-1/6

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