SOLUTION: I need help on my math homework and to understand it because i have a quiz tomorrow on it. When i do my problem and its a less than problem (<) i always get the same number that it

Algebra ->  Inequalities -> SOLUTION: I need help on my math homework and to understand it because i have a quiz tomorrow on it. When i do my problem and its a less than problem (<) i always get the same number that it      Log On


   



Question 254325: I need help on my math homework and to understand it because i have a quiz tomorrow on it. When i do my problem and its a less than problem (<) i always get the same number that its being less than by. for example one of my problems says this 3x+9<18 and I got that x=3. Therefore the problem would be 3*3+9<18 when 3*3+9=18.
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You are close. But not quite correct
3x%2B9+%3C+18
3x+%3C+18=9
3x+%3C+9
x+%3C+9%2F3
x%3C3
So x=3 is NOT an answer. All values of x that are "less than three" work.
You're on the right path with the algebra. But don't swap the < into an =.