解方程组:3(6x-10)+4(2y+1)=41,4(2x+5)-3(3y-1)=-22
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(1)2x-3y=10,-4x+y=5 (2)3x-2y=15,5x-4y=23
解方程组:4(x+1)=3(y+3) x-2y=7y-6x/3
1/2x-2y=-74,x-6y=-12解方程组,x/5-y/2=2,2x+3y=4解方程组
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
解二元一次方程组{3(x+y)-4(x-y)=4,x+y/2+x-y/6=1
解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1
解二元一次方程组:3(x+y)-4(x-y)=4,x+y/2+x-y/6+1
解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1
10/x+y+3/x-y=-5 15/x+y-2/x-y=-1(用换元法解此方程组)
利用图像解方程组:(1) {2y-x=-6 {y+3x=4
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1