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-2 (4x+5)=-42
We simplify the equation to the form, which is simple to understand
-2(4x+5)=-42
Reorder the terms in parentheses
+(-8x-10)=-42
Remove unnecessary parentheses
-8x-10=-42
We move all terms containing x to the left and all other terms to the right.
-8x=-42+10
We simplify left and right side of the equation.
-8x=-32
We divide both sides of the equation by -8 to get x.
x=4
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