Tolong bantu jawab no 8-11 pake cara yah?

Bab Persamaan Linear
Matematika SMP Kelas VII

8] 1/3 (2x - 1) = 2/5 (x + 3)
5 (2x - 1) = 3 . 2 . (x + 3)
10x - 5 = 6x + 18
10x - 6x = 18 + 5
4x = 23
x = 23/4
x = 5 3/4 → C

9] 1/3 (x - 2) = 1/5 (x - 5)
5x - 10 = 3x - 15
2x = -5
x = -5/2

10] 2/3 (2x - 1) = x + 5
4x - 2 = 3x + 15
x = 17 → D

11] persegi panjang
k = 2 (3x + 5 + 2x - 3) = 64
5x + 2 = 32
x = 30/5
x = 6

p = 3 . 6 + 5 = 23 cm
l = 2 . 6 - 3 = 9 cm

luas = 23 . 9 = 207 cm² → B