linear system of curves

例句：

1. 1.The linear system of equations is solved using the method of substitution.
   通过替换法解决线性方程组。
2. 2. The linear system of equations is a fundamental concept in mathematics.
   线性方程组是数学中的一个基本概念。
3. 3.The linear system of equations can be solved by using numerical methods.
   线性方程组可以通过数值方法求解。