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5=-(8-2x)-7
We simplify the equation to the form, which is simple to understand
5=-(8-2x)-7
Remove unnecessary parentheses
5=-8+2x-7
We move all terms containing x to the left and all other terms to the right.
-2x=-8-7-5
We simplify left and right side of the equation.
-2x=-20
We divide both sides of the equation by -02 to get x.
x=10
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