2x+3y-1=x+6 { y-x-8=x+6(二元一次方程) 3x+2y=1 2x-2y+2z=-5 x+2y-z=3(三元一次)x+2y=-112x/0.5-10=y(二元一次)
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2x+3y-1=x+6 { y-x-8=x+6(二元一次方程) 3x+2y=1 2x-2y+2z=-5 x+2y-z=3(三元一次)x+2y=-112x/0.5-10=y(二元一次)
2x+3y-1=x+6 { y-x-8=x+6(二元一次方程) 3x+2y=1 2x-2y+2z=-5 x+2y-z=3(三元一次)
x+2y=-11
2x/0.5-10=y(二元一次)
2x+3y-1=x+6 { y-x-8=x+6(二元一次方程) 3x+2y=1 2x-2y+2z=-5 x+2y-z=3(三元一次)x+2y=-112x/0.5-10=y(二元一次)
x+2y=-11
2x/0.5-10=y(二元一次)
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