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40+8x=-4(-4x-4)
We simplify the equation to the form, which is simple to understand
40+8x=-4(-4x-4)
Reorder the terms in parentheses
40+8x=+(+16x+16)
Remove unnecessary parentheses
+40+8x=+16x+16
We move all terms containing x to the left and all other terms to the right.
+8x-16x=+16-40
We simplify left and right side of the equation.
-8x=-24
We divide both sides of the equation by -8 to get x.
x=3
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