English: So, here this getting this $x_{1}^{(1)} = \frac{1}{a_{11}}\left( b_{1} - a_{1j}x_{j}^{(0)} \right) = \frac{1}{5}\left( 13 - y^{(0)} - 2z^{(0)} \right)$ because a₁₂ = 1, a₁₃ = 2.
Telugu: కాబట్టి, ఇక్కడ ఈ $x_{1}^{(1)} = \frac{1}{a_{11}}\లెఫ్ట్(b_{1} - a_{1j}x_{j}^{(0)} \కుడి) = \frac{1}{5}\ఎడమ(13 - y^{(0)} - 2z^{(0)} \కుడి)$ ఎందుకంటే a₁₁₂ = 1, a₁₃= 2.