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x =9-(-2)+2x
We simplify the equation to the form, which is simple to understand
x=9-(-2)+2x
Remove unnecessary parentheses
x=9+2+2x
We move all terms containing x to the left and all other terms to the right.
+1x-2x=+9+2
We simplify left and right side of the equation.
-1x=+11
We divide both sides of the equation by -1 to get x.
x=-11
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