Posted by Unknown on Monday, August 20, 2012 at 7:43pm.
The way you typed your equations makes them much too ambiguous.
e.g. #2
is it 5/a - 5 - 1 = a/a - 5 the way your typed it, or is it
5/(a-5) - 1 = a/(a-5)
I supect it is the latter.
so multiply each term by the LCD, which would be a-5 to get
5 - 1(a-5) = a
5 - a + 5 = a
-2a =-10
a = -5
clarify the others before I proceed
Try these yourself, remember by multiplying by the LCD, all fractions will disappear.
1. 5/(2y+6) + 1/(y-2) = 3/(y+3)
2. 5/(a-5) - 1 = a/(a-5)
3. 2/(x^2)-x-12 - 6/(x+4) = 2/(x-3)
4. 65-n/(n) = 4 + 5/(n)
5. a/ (a-2) + 2/(3) = 2/(a-2)
6. x-1/(3) + x+2/(4) =1/(6)
7. 5/(3x) - 1/(9) = 1/(x)
8. 3/(3x-2) = 4/(2x+1)
9. 3/(x+3) - 1/(x-2) = 5/(2x+6)
* " / " That Is Suppose to be a fraction line.
some are still ambigious,
e.g. #4 and #6
is #6 (x-1)/3 + (x+2)/4 = 1/6 ???
there is no need to place brackets around the 3 or the 4, but they are needed at the top.
(x-1)/3 + (x+2)/4 = 1/6
multiply each term by 12, which is the LCD for 3,4, and 6
4(x-1) + 3(x+2) = 2
4x-4+3x+6=2
7x = 0
x = 0
try some of the others, let me know what you got
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