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3a+2b=5ab 5y﹣3y=2 3x2y﹣2yx2=x2y ﹣3x+5x=﹣8x
X=3 Y=5
X=3 Y=5 H=4 W=6 X=3 Y=5
X=3 Y=5 H=3 W=6 X=3 Y=5
X=3 Y=4 H=4 W=6 X=3 Y=5
X=3 Y=3 H=4 W=6
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
5x2y与-2xy2 -3x2y与yx2 4x与4x2 6x3y4与-6x3z4
y=-2x+4 y=x+4 y=-2x- y=x-
2x -y+2z =0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0
7a+a=7a2 5y﹣3y=2 3x2y﹣2yx2=x2y 3a+2b=5ab
X=3 Y=5 X=3 Y=5 H=4 W=6 X=3 Y=5 X=3 Y=5 H=3 W=6 X=3 Y=5 X=3 Y=4 H=4 W=6 X=3 Y=5 X=3 Y=3 H=4 W=6
4x+3y=7xy 3a2﹣2a2=1 3x2y﹣3yx2=0 2a3+4a3=6a6
X=3 Y=5
X=3 Y=5 H=4 W=6 X=3 Y=5
X=3 Y=5 H=3 W=6 X=3 Y=5
X=3 Y=4 H=4 W=6 X=3 Y=5
X=3 Y=3 H=4 W=6
7a+a=7a 2 5y-3y=2 3x2y-2yx2=x2y 3a+2b=5ab
3x2y﹣2yx2=x2y 5y﹣3y=2 7a+a=7a2 3a+2b=5ab
X=3 Y=5
X=3 Y=5 H=4 W=6 X=3 Y=5
X=3 Y=5 H=3 W=6 X=3 Y=5
X=3 Y=4 H=4 W=6 X=3 Y=5
X=3 Y=3 H=4 W=6
2x-y+2z=0 2x-y+2z=16 4x-3y+6z=42 4x-3y+6z=0