解方程组{(√2)x+(√3)y=5 (√3)x+(√2)y=2(√6)
10/x+y+3/x-y=-5 15/x+y-2/x-y=-1(用换元法解此方程组)
解方程组:(0.2x+0.1y)/2- (4x-y)/10=(x-y)/5+ (3x+0.5y)/30 (3x+2y-1
解方程组{(√2)x+(√3)y=5 (√3)x+(√2)y=2(√6)
解方程组 (1){2x-y=5,x-2y=1 (2){7x+3y=5,-5x+6y=-9
解方程组:1、6(x-y)-2(x-y)=14 2、3(x-y)+(x+y)+5 怎么解
解一元二次方程组.(x+y)/2+(x-y)/3=6 4(x+y)-5(x-y)=2
(5)解方程组:2分之x+y+3分之x-y=6 ,4(x+y)-5(x-y)=2
解方程组(X+Y)/2+(X—Y)/3=6和4(X+Y)-5(X-Y)=2
解方程组X+Y除以2+X—Y除以3=6和4(X+Y)—5(X—Y)=2
解方程组:4(x+1)=3(y+3) x-2y=7y-6x/3
解方程组 x-5y=0 { (x,y为正整数) 3X+2y=17
二元一次方程组:(1)x-y=2 (2)|x²-y²-4|+(3√5-5y-10)² =0