2(3x+2y)=2x+8(3){x+3/3+y+5/3=7 x-4/3+2y-3/5=2
(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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相关问题
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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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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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{y=3x-7{5x+2y=8{x-2y=3{2y+x=-1{2y-x=6{2x+y=8
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x+y/2+x-y/3=5/6;x=y/6-x-y/3=1/2
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- {5x-2y=3{x+6y=7- {x+2y=0{3x+4y-6=0- {x-y=5{2x=15-3y- {3x-2
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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)6x-3y=-3,5x-9y=-35 (2)2x-5y=-3,5x-2y=-18 (3)x/3-y/4=1,3X-
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2x-3y-2=0 5x+3y=18 2x-3y=7 (2x-3y+5)/7+2y=9 2x-3y=3 6x+5y=35
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(3x^2y^3)/(2xy)^2=?(3x^2y^2)/(xy)*(1/y)=?x^2y-5x^2y+3x^y=?(6
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解下列方程组(1){y=2/3x 2x+6y=18 (2){2x+3y=5 4x-y=3 (3){x-y=3 3x-8y