x+80%y=42 y-x=12
4个回答
x+80%y=42
y-x=12
1.8y=54
y=30
x=18
相关问题
{80/(x+y) +42/(x-y) =7 40/(x+y) +70/(x-y) =7 怎么解( ⊙ o ⊙
3x-y+z=42x+3y-z=12x+y+z=6
解这个方程3x-y+z=42x-3y-z=12x+y+z=6
xy方程式怎么算98/x+42/y=872/x+108/y=12
解一道方程8x+7y+5(12-x-y)=80
求解一道三元一次方程组3x-y+z=42x+3y-z=12x+y+z=6
(x-y)的平方+(x-y)-42
4(x+y)=80 5(x-y)=80
{4(x+y)=80.5(x-y)=80.方程式
x+y=42100.8%x+101.1%y=42×101%x=?y=?