5/4x-1/2>x-5/4?

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Do yu have to find the CD for this promblem?

2007-03-10 14:20:38 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

You don't have to find the CD, but if you're not good with fractions it would be the easiest way to do it. Multiply everything in the equation by 4 and you get 5x-2>4x-5, then solve for x. You get x>-3

2007-03-10 14:31:03 · answer #1 · answered by dcl 3 · 0⤊ 0⤋

5/4x-1/2>x-5/4
5/4x - x > 5/4 + 1/2
x/4 > (5 + 2)/4
x > 7
Solution: {x belongs to R | x > 7}
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2007-03-10 22:27:21 · answer #2 · answered by aeiou 7 · 0⤊ 0⤋

5/4x-1/2>x-5/4
subtract x from both sides:
(x/4) -(1/2) > -5/4
add 1/2 to each side:
x/4 > -3/4
x> -3

2007-03-10 22:29:55 · answer #3 · answered by jaybee 4 · 0⤊ 0⤋