2006-07-21 15:10:28 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
First get rid of all the denominators by multiplying by the LCD.
LCD = acx
acx(4/a) - acx(7/c) = acx(9/x)
4cx - 7ax = 9ac
Put the terms with c on the same side (so you will need to subtract 4cx from each side).
-7ax = 9ac - 4cx
Factor c on the right side
-7ax = c(9a-4x)
Divide both sides by 9a-4x
c = -7ax/(9a-4x)
Now just to make it look a little nicer, multiply the top and bottom by -1.
c = 7ax/(4x-9a)
2006-07-21 16:22:52 · answer #1 · answered by MsMath 7 · 2⤊ 1⤋
c=7 / (4/a -9/x)
2006-07-21 15:15:46 · answer #2 · answered by baraaa 3 · 0⤊ 0⤋
multiply the equation thru by the lcd of all the terms. In this case that is acx.
That gives you 4cx - 7ax = 9ac
Isolate all the terms with c on one side of the equation:
4cx - 9ac = 7ax
factor out the c from the left side:
c(4x - 9a) = 7ax
The last step is up to you
2006-07-21 15:20:27 · answer #3 · answered by alchemthis 2 · 0⤊ 0⤋
c= [(9/x)-(4/a)]/(-7)
2006-07-21 15:15:00 · answer #4 · answered by jgallen829 2 · 0⤊ 0⤋
Who cares ? Try to solve this 56hrs/weekly pay - rent + car payment = normal . Go do your own homework nerdboy.
2006-07-21 15:19:51 · answer #5 · answered by Thomas H 4 · 0⤊ 0⤋
I'm with baraaa
2006-07-21 15:17:53 · answer #6 · answered by realius 2 · 0⤊ 0⤋
c=63x-28/a
2006-07-21 15:15:28 · answer #7 · answered by merigold00 6 · 0⤊ 0⤋