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y-5=2(x-3)
y-5=2x-6
y=2x-6+5
y=2x-1
y-5=2(x-3)
y-5=2x-6
y=2x-6+5
y=2x-1
2.y-y1/y2-y1=x-x1/x2-x1
y-3/1-3=x-3/2-3
y-3/-2=x-3/-1
-1(y-3)=-2(x-3)
-1y+3=-2x+6
-1y+2x=-3+6
-1y+2x=3