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171=-9x(-99)
We simplify the equation to the form, which is simple to understand
171=-9x(-99)
Reorder the terms in parentheses
171=+(+891x)
Remove unnecessary parentheses
+171=+891x
We move all terms containing x to the left and all other terms to the right.
-891x=-171
We simplify left and right side of the equation.
-891x=-171
We divide both sides of the equation by -0891 to get x.
x=0.191919191919
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