x + 4b= 3a
2x - a= b
ax + 5 = c
2006-08-28 16:34:46 · 5 answers · asked by tenizgurl7 3 in Education & Reference ➔ Homework Help
x + 4b = 3a
x + 4b - 4b = 3a - 4b (subtract 4b on each side)
x = 3a - 4b
2x - a = b
2x - a + a = b + a (add a on both sides)
2x = b + a
2x (b + a)
--- = --------
2 = 2 (divide by 2 on both sides)
x = b + a
-------
2
ax + 5 = c
ax + 5 - 5 = c - 5 (subtract 5 on both sides)
ax = c - 5
ax = c - 5
--- ------
a a (divide by a on both sides)
x = c - 5
------
a
2006-08-28 16:46:09 · answer #1 · answered by ted_armentrout 5 · 0⤊ 1⤋
i wanna sayyyyyyyyyyyy 1&2/5b (7b/5).... BUT i could be COMPLETELY wrong.:(
yea i think i am 'cause i didn't even use the last equation. but whatever, i gave it a shot and i haven't done math in 3 years and you should be doing your own hw.
2006-08-28 23:40:25 · answer #2 · answered by WiseWisher 3 · 0⤊ 0⤋
1.) x+4b=3a
x= 3a+4b
2.) 2x-a=b
2x=b+a
x = b+a
---------
2
3.) ax+5=c
ax=c-5
x = c-5
------
a
2006-08-28 23:47:55 · answer #3 · answered by pol_1121 2 · 0⤊ 0⤋
x=3a-4b , a=2x-b
x=3(2x-b)- 4b
= 6x-3b-4b
= 6x-7b
7b=6x-x 7b=5x
x= 5/7 b
2006-08-29 00:03:18 · answer #4 · answered by nagendra rai 2 · 0⤊ 1⤋
Girl you need to be doing ur own homework
2006-08-28 23:46:13 · answer #5 · answered by Pixie_Dust 1 · 0⤊ 0⤋