解方程组:3(x-5)=3y-6 x-y/3-x+2y/6=2
问题描述:
解方程组:3(x-5)=3y-6 x-y/3-x+2y/6=2
解方程组:3(x-5)=3y-6 x-y/3-x+2y/6=2
答
由①得,3x-15=3y-6,即:x-y=3……③
由②得,2(x-y)-(x+2y)=12,即:x-4y=12……②
③-②得,3y=-9,y=-3
把y=-3代入③得,x+3=3,∴x=0
∴{x=0 y=-3