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jadi gradien 2x+y=7→→ m= -2/1 = -2
karena sejajar maka m1=m2=-2
persamaan garis yg melalui titik (-2,3) dan sejajar 2x+y=7:
y-y1=m(x-x1)
y - 3= -2(x - (-2))
y - 3= -2x -4
2x + y =-4 + 3
2x + y = -1