Help? do I do this: 5-25x<5+2x
2007-03-10 14:33:23 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Remember to distribute over everything within the parentheses.
5 - 5(5-x) < 5(x-1) + 2x
5 - 25 + 5x < 5x - 5 + 2x (this is tricky... remember a neg. times a neg. is a positive, so you get 5x on the left)
-20 + 5x < 7x - 5
-15 < 2x
-15/2 < x
2007-03-10 14:41:17 · answer #1 · answered by Wanderer 4 · 0⤊ 0⤋
5-5(5-x)<5(x-1)+2x
5 - 25 + 5x < 5x -5 + 2x
5x -7x < 20 - 5
-2x < 15
x > 15/-2
x > -7.5
Solution: {x belongs to R | x >-7.5}
::;
2007-03-11 01:09:08 · answer #2 · answered by aeiou 7 · 0⤊ 0⤋
distribute the 5s:
5-25-5x<5x-5+2x
from there you combine like terms:
-20-5x<7x-5
-15<12x
-15/12
im guessing thats right depending on the questions directions
2007-03-10 22:38:13 · answer #3 · answered by karebear 2 · 0⤊ 0⤋
5-5(5-x)<5(x-1)+2x
5-25+5x<5x-5+2x
5x-20<7x-5
-15<2x
x>-15/2
2007-03-10 22:38:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Do your own homework!
2007-03-10 22:36:19 · answer #5 · answered by Misty Eyes 6 · 0⤊ 2⤋