Question Number 6115 by Rasheed Soomro last updated on 14/Jun/16
$${Solve}\:{the}\:{system}\:{of}\:{following}\:{equations} \\ $$$${a}^{\mathrm{3}} −{bcd}=−\mathrm{32} \\ $$$${b}^{\mathrm{3}} −{acd}=−\mathrm{79} \\ $$$${c}^{\mathrm{3}} −{abd}=\mathrm{109} \\ $$$${d}^{\mathrm{3}} −{abc}=\mathrm{502} \\ $$