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9x - 6y + 8 = 0
9x - 2(3y) = - 8
9x -2(4x + 7) = - 8
9x - 8x - 14 = -8
x = 6
y = ?
9x - 6y = -8
54 - 6y = -8
- 6y = - 62
y = 62/6 = 10 2/6 = 10 1/3
9x - 2(3y) + 8 = 0
9x - 2(4x + 7) + 8 = 0
9x - 8x - 14 + 8 = 0
x - 6 = 0
x = 6
3y = 4(6) + 7
3y = 31
y = 31/3
HP: {(6,31/3)}