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-3x-39=4(x-1)
We simplify the equation to the form, which is simple to understand
-3x-39=4(x-1)
Reorder the terms in parentheses
-3x-39=+(+4x-4)
Remove unnecessary parentheses
-3x-39=+4x-4
We move all terms containing x to the left and all other terms to the right.
-3x-4x=-4+39
We simplify left and right side of the equation.
-7x=+35
We divide both sides of the equation by -7 to get x.
x=-5
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