7-7x;x=4

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Solution for 7-7x;x=4 equation: 



7-7xx=4

We move all terms to the left:

7-7xx-(4)=0

We add all the numbers together, and all the variables

-7xx+3=0

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

-7xx=-3

x=-3/1

x=-3

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