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78/28 = 0
(6*y)/5 = (7*y)/6
z/19 = -21
y = 0.125*x^2+0.1953*x-0.02163;0.125;0.1953;-0.02163
-((0.1953^2-(-0.02163*0.125*4))/(0.125*4))
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