2.1863   ODE No. 1863

1. Problem in Latex
2. Mathematica input
3. Maple input

$$\{x^{\prime }(t)+3x(t)+4y(t)=0,2x(t)+y^{\prime }(t)+5y(t)=0\}$$ ✓ Mathematica : cpu = 0.007311 (sec), leaf count = 84

$$\left\{\{x(t)\to \frac{1}{3}{c}_1{e}^{-7t}(2e^{6t}+1)-\frac{2}{3}{c}_2{e}^{-7t}(e^{6t}-1),y(t)\to \frac{1}{3}{c}_2{e}^{-7t}(e^{6t}+2)-\frac{1}{3}{c}_1{e}^{-7t}(e^{6t}-1)\}\right\}$$

✓ Maple : cpu = 0.034 (sec), leaf count = 35

$$\left\{\{x\left(t\right)=\mathit{\_}\mathit{C}\mathit{1}{\mathrm{e}}^{-7t}+\mathit{\_}\mathit{C}\mathit{2}{\mathrm{e}}^{-t},y\left(t\right)=\mathit{\_}\mathit{C}\mathit{1}{\mathrm{e}}^{-7t}-\frac{\mathit{\_}\mathit{C}\mathit{2}{\mathrm{e}}^{-t}}{2}\}\right\}$$