Solve for x, y, z, a, b
x=-\frac{2}{3}\approx -0.666666667\text{, }y=-4\text{, }z=-5\text{, }a=-4\text{, }b=-5
x=\frac{2}{3}\approx 0.666666667\text{, }y=-4\text{, }z=-5\text{, }a=-4\text{, }b=-5
x=-1\text{, }y=-4\text{, }z=-5\text{, }a=-4\text{, }b=-5
x=1\text{, }y=-4\text{, }z=-5\text{, }a=-4\text{, }b=-5
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