解10+(10-x)y=21.2,10+(14-x)y=27.

x+10y+9=10x+y怎么解 (10X+Y)-(10Y+X)=63 怎么解 (10x+y)(10y+x)=736怎么解 10y+x-10x-y=63的解. 10x+y+10y+x=154 如何解 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 解方程x+y=15 x/y=15/10x+y=15 x/y=15/10 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 谁会解10x+y=6(x+y)+3 10y+x=4(x+y)+9 如何解x+y＞11,10x+y-18=10y+10x 解方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 解方程组：2/(x+y)+5/(x-y)=18 9/(x+y)-10/(y-x)=66 解方程组:2/(x+y)+5/(x-y)=18 9/(x+y)-10/(y-x)=66 解方程组 2x+y(y-2x)=9 (x+y)(x+y-3)=10十万火急!求解! 解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12) 解分式方程：10/(x+y)+3/(x-y)=-5,15/(x+y)-2/(x-y)=-1