You can put this solution on YOUR website! 4{-2-3[-(-2+3)-(-3-1)-3}-5
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Work from the inside to te outside::
= 4{-2-3(1)-(-4)-3}-5
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= 4{-2-3+4-3}-5
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= 4{-4}-5
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= -16-5
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= -21
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Cheers,
Stan H.
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