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23. Which expression is equivalent to the given expression? \[ \sum_{i=-3}^{6}(2 i-3) \] Less \[ \sum_{i=-2}^{5}(2 i-3) \] \[ \begin{array}{l} 9+\sum_{i=-2}^{5}(2 i-3) \\ 9+\sum_{i=-2}^{6}(2 i-3) \end{array} \] \[ -9+\sum_{i=-3}^{5}(2 i-3) \]