tolong dijawab no. 2,3,4,5,11-19!! please pake cara!

[tex]2. \\ \frac{1}{3} x - 5 = 10 \\ x - 15 = 30 \\ x = 30 + 15 \\ x = 45 \\ \\ 3. \\ \frac{1}{4} x + \frac{1}{2} = 7 \\ x + 2 = 28 \\ x = 28 - 2 \\ x = 26 \\ \\ 4. \\ \frac{3}{4} x - \frac{1}{5} x = 2 \\ 15x - 4x = 40 \\ 11x = 40 \\ x = \frac{4}{11} \\ x = 3 \frac{7}{11} \\ \\ 5. \\ \frac{y}{2} = \frac{y}{7} - 10 \\ y = \frac{2y}{7} - 20 \\ y - \frac{2y}{7} = - 20 \\ 7y - 2y = - 140 \\ 5y = - 140 \\ y = 28[/tex]

Bentar ya, saya jawab yang ini dulu. nanti baru saya lanjutin lagi yang no. 11-19.