(X-6)*(Y+18)=(X-10)*(Y+34) 怎么解
问题描述:
(X-6)*(Y+18)=(X-10)*(Y+34) 怎么解
答
x-6={(x-10)(y+34)}/y+18
x=(xy+34x-10y-340)/(y+18)+6
x(y+18)=(xy+34x-10y-340)+6(y+18)
y=4x-58
用y=4x-58代入,即:
(x-6)(4x-58+18)=(x-10)(4x-58+34)
求得x=0
进而求得y=-58
x-6={(x-10)(y+34)}/y+18
x=(xy+34x-10y-340)/(y+18)+6
不好意思哦,分式输入不了