Question

1.{x+3=0 3分之1x-3y=6 2.{2x-3y=0 3x=4y-2=0 具体点过程快点~

Answer 1

1.{x+3=0 ,x=-3

3分之1x-3y=6 ,-3y=7,y=-7/3

2.{2x-3y=0 ,x=3y/2

3x+4y-2=0,3*3y/2+4y-2=0,17y/2=2,y=4/17