解方程组 3x-5y=10①2x+10y=4②
解方程组X+Y/2=3X-2Y=10+6X+Y/4
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 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
解方程组(x/2-y/5=4①,x/7-y/15=3②)
已知方程组{3x+4y=10 4x+3y=-2,不解方程组则x+y=
解方程组(1)2x-3y=10,-4x+y=5 (2)3x-2y=15,5x-4y=23
解方程组4/3x-2y+3/2x-5y=10,5/3x-2y-2/2x-5y=1
解方程组:{4/3x-2y+3/3x-5y=10,5/3x-2y-3/3x-5y=-1
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
解方程组 2x+y(y-2x)=9 (x+y)(x+y-3)=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