Challenge: System of Linear Equations

Exercise

Use the code editor below to write the R code required to solve the following system of linear equations:

$$\begin{alignat}{2} 0 * x_1 \space + \space 2 * x_2 \space + \space 3 * x_3 = 0 \\ 5 * x_1 \space + \space 0 * x_2 \space + \space 1 * x_3 = 1 \\ 1 * x_1 \space + \space 4 * x_2 \space - \space 2 * x_3 = 3 \\ \end{alignat}$$ ...