SOLUTION: Solve. 3x + 1 <= -2 or 2x + 3 >= 5 (3x plus 1 is less than or equal to negative 2 or 2x plus 3 is greater than or equal to 5) I dont understand the "or" ...

Algebra ->  Inequalities -> SOLUTION: Solve. 3x + 1 <= -2 or 2x + 3 >= 5 (3x plus 1 is less than or equal to negative 2 or 2x plus 3 is greater than or equal to 5) I dont understand the "or" ...      Log On


   



Question 204430: Solve.
3x + 1 <= -2 or 2x + 3 >= 5
(3x plus 1 is less than or equal to negative 2 or 2x plus 3 is greater than or equal to 5)

I dont understand the "or" ...

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Use www.wolframalpha to plot the first condition 3x+%2B+1+%3C=+-2
http://www91.wolframalpha.com/input/?i=3x+%2B+1+%3C%3D+-2
Thne use it again to plot the second one 2x+%2B3+%3E=+5
http://www91.wolframalpha.com/input/?i=+2x+%2B+3+%3E%3D+5
Since the problem said "OR", then from your logic course, you know that x OR Y is true when either x or Y is true. So the resulting plot is the Union of the two plots above (any x that works in either equation, is a valid answer)