7x-1=3(x-7)

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Solution for 7x-1=3(x-7) equation:



7x-1=3(x-7)
We move all terms to the left:
7x-1-(3(x-7))=0
We calculate terms in parentheses: -(3(x-7)), so:
3(x-7)
We multiply parentheses
3x-21
Back to the equation:
-(3x-21)
We get rid of parentheses
7x-3x+21-1=0
We add all the numbers together, and all the variables
4x+20=0
We move all terms containing x to the left, all other terms to the right
4x=-20
x=-20/4
x=-5

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