详细解方程 x-(1/4x+7)-[2/5(x-1/4x-7)+2]=5/18x详细详细详细 感激不尽感激不尽!

问题描述:

详细解方程 x-(1/4x+7)-[2/5(x-1/4x-7)+2]=5/18x
详细详细详细 感激不尽感激不尽!