4(100-x)+2x=232的解_数学解答

4(100-x)+2x=232的解

人气：241 ℃　时间：2020-04-12 22:59:45

解答

4(100 - x) + 2x = 232
400 - 4x + 2x = 232
-4x + 2x = 232 - 400
-2x = -168
x = (-168)÷(-2)
x = 84