-10$\leq$x$\leq$10 or -11$\lt$x$\lt$11
Work Step by Step
2abs(x)$-$9$\leq$11 2abs(x)$\leq$20 abs(x)$\leq$10 therefore, x ranges between -10$\leq$x$\leq$10 or -11$\lt$x$\lt$11
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