Tolong no 17 & 18 beserta jalannya ya

17. Soalnya kurang lengkap, garis h gda petunjuknya

18.
y = 5x/3 + b
Subtitusi (-6,1)
1 = 5(-6)/3 + b
1 = -30/3 + b
1 = -10 + b
-10 + b = 1
b = 1 + 10 = 11

Jadi
y = 5x/3 + 11
Kali 3
3y = 5x + 33
5x - 3y + 33 = 0 A