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-2(10x-3)=-84
We simplify the equation to the form, which is simple to understand
-2(10x-3)=-84
Reorder the terms in parentheses
+(-20x+6)=-84
Remove unnecessary parentheses
-20x+6=-84
We move all terms containing x to the left and all other terms to the right.
-20x=-84-6
We simplify left and right side of the equation.
-20x=-90
We divide both sides of the equation by -20 to get x.
x=4.5
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