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(X+Y)/2+(X—Y)/3=6和4(X+Y)-5(X-Y)=2
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3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1
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
3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组
解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4
解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
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:4(x+1)=3(y+3) x-2y=7y-6x/3