Tolong dijawab yaa makasih :)

8.
[tex] \frac{2y - 3}{2} + \frac{5y + 4}{4} = 4 \\ \frac{8y - 12 + 10y + 8}{8} = 4 \\ 18y - 4 = 4 \times 8 \\ 18y = 32 + 4 \\ 18y = 36 \\ y = \frac{36}{18} = 2 [/tex]
9.
[tex]5x + 3 = 2x - 9 \\ 5x - 2x = - 9 - 3 \\ 3x = - 12 \\ x = \frac{ - 12}{ 3} = - 4[/tex]
10.
[tex] \frac{2x - 3}{2} = 4 + \frac{5x + 6}{4} \\ \frac{2x - 3}{2} = \frac{5x + 10}{4} \\ 8x - 12 = 10x + 20 \\ 8x - 10x = 20 + 12 \\ - 2x = 32 \\ x = \frac{32}{ - 2} = - 16[/tex]

semoga membantu