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persamaannya y-4=2/3(x+1)
y-4=2/3x+2/3
2/3x - y +2/3+ 4 = 0
2/3x - y + 14/3 = 0 (kali 3)
2x - 3y = -14
titik potong dengan sumbu x artinya y = 0, maka
2x - 0 = -14
x = - 7
jadi jawabannya -7,0 (d)