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5y = 4x + 2
y = 4x/5 + 2/5
m1 = 4/5
karena sejajar maka m1 = m2 =4/5
persamaan garis :
y - y1 = m2 (x - x1)
y - (-5) = 4/5 (x - 2)
y + 5 = 4/5 (x - 2)
kedua ruas dikalikan 5
5y + 25 = 4 (x - 2)
5y + 25 = 4x - 8
- 4x + 5y + 25 + 8 = 0
- 4x + 5y + 33 = 0
kedua ruas dikalikan (-)
4x - 5y - 33 = 0