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x2-x1 3-5 -2
persamaan garis
y-y1=m(x-x1)
y-0=4/-2(x-5)
2(y-0)=4(x-5)
2y=4x-20
-4x-2y=-20
atau
4x+2y=20
maaf kalo salah
semoga bener hehe