{0.6x-0.4y=1.1 {0.2x-0.4y=2.3用加减消元法计算
y-x=0 2x-y=6 以加减消元法计算
已知X= -0.1001,Y= - 0.1101,用原码加减交替法计算:X/Y=?
能用加减消元法解么?x=50(y+0.4) x=75(y-0.4) 解方程组,
5x-3y=2,4y+2x=6用加减消元法
{x-2y=9 {3x-2y=-1 (用加减消元法)
2x+y=4,x+2y=5解方程组(用加减消元法)
x+y/2+x-y/3=6,4(x+y)-5(x-y)=2用加减消元法解方程组
用加减消元法解下列方程组:2x+y=15 x+2y=18 5x+y=3 x+5y=2
{x-y=3 2x+3(x-y)=11 用加减消元法解方程组
用加减消元法(1)2x-y=8 2x+5y=-4 (2)2x+5y=17 2x-3y=1 (3)x-y=5 2x+3y-
方程组3x+2y=5 5x+4y=7 j加减消元法
4(x+2y)=12,3x=5+2y(加减消元法)