tentukan hambatan pengganti pada gambar tsb!!! ditunggu jawabannya :')

1/Rp = 1/R2 + 1/R3
1/Rp = 1/8 + 1/8
1/Rp = 2/8
Rp = 8/2
Rp = 4 ohm

Rs1 = R1 + Rp + R4
Rs1 = 9 + 4 + 2
Rs1 = 15 ohm

Rs2 = R5 + R6
Rs2 = 8 + 7
Rs2 = 15 ohm

Hambatan penggantinya...
1/Rp = 1/Rs1 + 1/Rs2
1/Rp = 1/15 + 1/15
1/Rp = 2/15
Rp = 15/2
Rp = 7,5 ohm