x=3,y=-1
2x+y=5(1) x-3y=6
5个回答
相关问题
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x+y/2+x-y/3=5/6;x=y/6-x-y/3=1/2
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(1){5x-3y=5 6x+2y=6 (2){3x+2y=5x+2 2(3x+2y)=2x+8(3){x+3/3+y+
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{2x-5y=21,{2x+y=6 {x-3y=1 {y=-2x+3 y=-x; y=1/2x+1 5x-9y=-13
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2X=3Y,4x-5y=2 -6x+5y=3,3x=4y 2x+3y=5,3x=y-9 3x=1-y,3x=2y-5
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1.8x+5y=10 8x-5y=10 2.3x+2y=9 4x-2y=5 3.2x+3y=5 6x-2y=-6 4.3
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(1)6x-3y=-3,5x-9y=-35 (2)2x-5y=-3,5x-2y=-18 (3)x/3-y/4=1,3X-
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1、(2x+3y)(3x-5y)-(x+y)(6x-7y)
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(1)x-y=3 x+y=5 (2)2x+y=32 2x+y=0 (3)3x+2y=5 x+3y=9 (4)6x+5z=
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(1)x+y+z=1 (2)x:y=4:5 (3) 2x+3y=16 (4)6x=5y
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3x+2y/4=2x+y/5=x-y+1/6