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-20.5-2x=10
We simplify the equation to the form, which is simple to understand
-20.5-2x=10
We move all terms containing x to the left and all other terms to the right.
-2x=+10+20.5
We simplify left and right side of the equation.
-2x=+30.5
We divide both sides of the equation by -2 to get x.
x=-15.25
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