y+10=6(x-10) y-10=3(x+10)
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y+10=6(x-10)y-10=3(x+10)y+10=6(x-10)y-10=3(x+10)y+10=6(x-10)y-10=3(x+10)
y+10=6(x-10) y-10=3(x+10)
y+10=6(x-10) y-10=3(x+10)
y+10=6(x-10) y-10=3(x+10)
1.4(x-y-1)=3(1-y)-22/x+3/y=22.5(x+y)-6=43x+3y+7y=10
x^2+4y^2-6x+4y+10=0,求x^4-y^4/(x+2y)(x-2y)*x+2y/xy^2+y^3除以(x^2+y^2/y)^2的值
(x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5
{6/x+y+10/x-y=30 6/x+y-10/x-y=-1
若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是()?(10x-11y)/(x-y) =[(8x-8y)+(2x-3y)]/(x-y) =8为什么8X-8Y=8?(10x-11y)/(x-y)=[(8x-8y)+(2x-3y)]/(x-y)=8+(2x-3y)]/(x-y)=8+0=8
(x+y)(x+y-10)+25=0,且x-y=3,求x,y
(x+y)(x+y-10)+25=0,且x-y=3,求x,y
x,y 满足x(x-2)-y(y-6)=-10,求x,y的值
解方程组x+y/6+x-y/10=3,x+y/6+y-x/10=-1x+y/6+x-y/10=3 ①x+y/6+y-x/10=-1 ②
化简:3(x+y)+5=10y+x
1.5(x+y)+3(x-y)=27(x+y)-3(x-y)=-62.x-y/7 - x+y/10 =1/22(x-y)-5(x+y)=3所谓细节决定成败,
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610(x-y)=3(x+y)+156(x+y)=4(2x-y)+16
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610(x-y)=3(x+y)+156(x+y)=4(2x-y)+16分开的。
用加减法解方程组:{(x+y)/6+(x-y)/10=3 (x+y)/6+(y-x)/10=-1
6分之x+y+10分之x-y=3,6分之x+y-10分之x-y=-1
谁会解10x+y=6(x+y)+3 10y+x=4(x+y)+9
已知x,y满足约束条件 2x+5y>=10 2x-3y>=-6 2x+y
已知x,y满足约束条件{2x+5y>=10,2x-3y>=-6,2x+y