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4x - 2y + 7 = 0
-2y = -4x - 7
y = 2x + 7/2, jadi m = 2
Jadi garadien garis r yang sejajar dengan 4x-2y+7=0 adalah 2 atau m = 2
4x+7=0+2y
4x+7=2y
(4x+7=2y) :2
4/2x+7/2=2/2y
2x+7/2=y
m