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2x-4(x+2)-6=0
We simplify the equation to the form, which is simple to understand
2x-4(x+2)-6=0
Reorder the terms in parentheses
2x+(-4x-8)-6=0
Remove unnecessary parentheses
+2x-4x-8-6=0
We move all terms containing x to the left and all other terms to the right.
+2x-4x=0+8+6
We simplify left and right side of the equation.
-2x=+14
We divide both sides of the equation by -2 to get x.
x=-7
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