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-20-5x=-4(x+7)
We simplify the equation to the form, which is simple to understand
-20-5x=-4(x+7)
Reorder the terms in parentheses
-20-5x=+(-4x-28)
Remove unnecessary parentheses
-20-5x=-4x-28
We move all terms containing x to the left and all other terms to the right.
-5x+4x=-28+20
We simplify left and right side of the equation.
-1x=-8
We divide both sides of the equation by -1 to get x.
x=8
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