解放程.x-(1/4x+1/4x+40)=320【急】一道应用题、已经理解题目,列出方程求解.
问题描述:
解放程.x-(1/4x+1/4x+40)=320【急】
一道应用题、已经理解题目,列出方程求解.
答
x-(1/4x+1/4x+40)=320
x-1/2x=320+40
1/2x=360
x=720
答
x-(1/4x+1/4x+40)=320 原式可化简为:x-(1/2x+40)=320 x-1/2x-40=320 1/2x-40=320 移项得1/2x=360 所以x=720
答
=720
答
x=320+1/2x+40
1/2x=360
x=720
答
x-(1/4x+1/4x+40)=320
1/2x-40=320
1/2x=360
x=720