(x+y)(x+y+1)=56,(x-y)(x-y+1)=12如何解这个方程组?
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
x+6=y-x-8,2x+3y-1=y-x-8 解这个方程组
y/3-x+1/6=3,2(x-y/2)=3(x+y/18) 解这个方程组
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1
解关于X,Y的方程组 {x+y=a (a-1)x+y=5
解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5)
要求 解方程组:{(X-1)(Y+1)=(X+1)(Y+1){X(2+Y)-6=Y(X-4)
解方程组{4/x+y+6/x-y=3, 9/x-y-1/x+y=1
解方程组:{4/x+y+6/x-y=3 9/x-y-1/x+y=1}
数学书解方程组{2(x+y)-(x-y)=3,(x+y)-2(x-y)=1
用加减法解方程组:{(x+y)/6+(x-y)/10=3 (x+y)/6+(y-x)/10=-1
2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组