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For which values of x is 2x-5<-3x+20?
For which values of x is 2x-5<-3x+20?
admin
2011-03-08
31
问题
For which values of x is 2x-5<-3x+20?
选项
答案
The first step in solving this problem is to isolate the variable on one side of the inequality: -5-20<-3x-2x -25<-5x 5>x It is important to remember that when dealing with inequalities, multiplying or dividing by a negative number involves reversing the sign. In this case, both sides were divided by -5, so the sign changes from <to>.
解析
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