Помогите с матем номер 692 (1) пожалуйста ✌✌✌✌

[latex]-2\frac{18}{25}x+y:1 \frac{5}{6}-99z, x=-4\frac{7}{17};y=-25\frac{2}{3}, z=-0.02 \\ \\ -2\frac{18}{25}*(-4\frac{7}{17})+(-25\frac{2}{3}):1 \frac{5}{6}-99*(-0.02) = \\ \\ -\frac{68}{25}*(-\frac{75}{17})+(-\frac{77}{3}):\frac{11}{6}-99*(-0.02) = \\ \\ -\frac{68}{25}*(-\frac{75}{17})+(-\frac{77}{3})*\frac{6}{11}-99*(-0.02) = \\ \\ -\frac{4}{1}*(-\frac{3}{1})+(-\frac{7}{1})*\frac{2}{1}-99*(-0.02) = \\ \\ 12-14+1.98=-0.02 \\ \\ [/latex]