方程组x/3+y/4=5,0.3x+0.4y=1.6
方程组x/3+y/4=5,0.3x+0.4y=1.6
方程组x-2y=8,3x-4y=5,x=?,y=?
已知方程组:5x+y=3 ; ax+5y=4与方程组x
x+y/2+x-y/3=6,4(x+y)-5(x-y)=2用加减消元法解方程组
3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 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)=12
解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27全过程、快
解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2
解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27
解下列方程组 3x=4(x-y) x-8(x-y)=5
解方程组0.4x+0.3y=2.4 x-3/3 =y+6/5