2.5(X+Y)=1200 10/3(X-Y)=1200
2个回答
(x+y)=1200/2.5=480
(x-y)=1200/(10/3)=360
1+2式
2x=840
x=420
代入y=60
相关问题
,(X+Y)*(5/2)=1200;(x-y)*(10/3)=1200
1200/x=1200/1.5x +10
y+x=1200 200x=120y=216000
66x+17y=3967 25x+y=1200
66x+17y=3967 25x+y=1200
解方程组二元一次(1)4X+4Y=1200 6Y-6X=1200
1200\X-1200\1.5X=5,求X
求二元一次方程x+y=360000,(1380-1200)x+(1200-1000)y=60000的解谢谢了,
(1) 66x+17y=3967 25x+y=1200
1200/x+10=1500/1.2x