-104=-4x-3(7x-7)

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Solution for -104=-4x-3(7x-7) equation:



-104=-4x-3(7x-7)
We move all terms to the left:
-104-(-4x-3(7x-7))=0
We calculate terms in parentheses: -(-4x-3(7x-7)), so:
-4x-3(7x-7)
We multiply parentheses
-4x-21x+21
We add all the numbers together, and all the variables
-25x+21
Back to the equation:
-(-25x+21)
We get rid of parentheses
25x-21-104=0
We add all the numbers together, and all the variables
25x-125=0
We move all terms containing x to the left, all other terms to the right
25x=125
x=125/25
x=5

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