tolong bantu jawab....

[tex]m = \frac{x}{5} + \frac{2}{3} y = - 4 \\ m = 15( \frac{x}{5} + \frac{2}{3} y = - 4) \\ m = 3x + 10y = - 60 \\ m = \frac{ - a}{b} \\ m = \frac{ - 3}{10} \\ m = - \frac{3}{10} [/tex]
Maaf Kalau Salah