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y=-10 y=3 y= y=4
(x,3)与点 (2,y)关于x轴对称,则( ) A.x=-2,y=-3; B.x=2,y=3; x=-2,y=3; x=2,y=-3
若a+3=b-1,则a+9=3b-3 若2x-6=4y-2,则x-3=2y-1 若x2-5=y2+1,则x2-y2=6 若,则2x=3y
x=﹣2,y=﹣3 x=2,y=3 x=﹣2,y=3 x=2,y=﹣3
x+2y-1=0 2x+y-1=0 2x+y-3=0 x+2y-3=0
x= -2, y=-3 x=2, y=3 x=-2, y=3 x=2, y=-3
3x-y=0 3x+y=0 x-3y=0 x+3y=0
x﹣y﹣3=0 2x+y﹣3=0 x+y﹣1=0 2x﹣y﹣5=0
x+2y-1=0 2x+y-1=0 2x+y-3=0 x+2y-3=0
x=﹣2,y=3 x=2,y=3 x=﹣2,y=﹣3 x=2,y=﹣3
x+2y-1=0 2x+y-1=0 2x+y-3=0 x+2y-3=0
2x+y-3=0 x-2y+1=0 x+2y-3=0 2x-y-1=0
2x+y-3=0 x-2y+1=0 x+2y-3=0 2x-y-1=0
x+2y-1=0 2 x+y-1=0 2 x+y-3=0 x+2y-3=0
x-2y+1=0 x+2y-3=0 2x+y-3=0 2x-y-1=0
2x-y-5=0 x+2y-3=0 x+2y+3=0 2x-y-1=0
x+2y-1=0 2x+y-1=0 2x+y-3=0 x+2y-3=0