Evaluate (complex solution)
C=-4.2\text{ and }D=-\frac{21}{26}
Solve for D
D=-\frac{21}{26}\approx -0.807692308
C = -\frac{21}{5} = -4\frac{1}{5} = -4.2
Solve for C
C = -\frac{21}{5} = -4\frac{1}{5} = -4.2
D = -\frac{21}{26} = -0.8076923076923077
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