<_ means less than or equal to
2007-03-29 01:48:14 · 9 answers · asked by ? 2 in Science & Mathematics ➔ Mathematics
2a +3 = a - 2
2a + 3 - a = a - 2 - a
a + 3 = - 2
a + 3 - 3 = - 2 - 3
a = - 5
- - - - - - - - -
7d ≤ 8d + 11
7d - 7d ≤ 8d + 11 - 7d
0 ≤ d + 11
- 11 + 0 ≤ d + 11 - 11
- 11≤ d
- - - - - - - - - - s-
2007-03-29 02:53:48 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
Are these two different expressions ?
1.
2a + 3 = a – 2
2a – a = – 2 – 3
a = – 5
2.
7d <_ 8d+11
7d – 8d <_11
– 1d <_11
d = <_ – 11
2007-03-29 02:50:29 · answer #2 · answered by Pranil 7 · 0⤊ 0⤋
- 3-d = 2nd + 10 - 3-d - 2nd = 2nd + 10 - 2nd - 5d = 10 - 5d / - 5 = 10 / - 5 d = - 10/5 d = - 2 - - - - - - - - 7d ?8d + 11 7d - 7d ? 8d + 11 - 7d 0 ? d + 11 0 - 11 ? d + 11 - 11 - 11 ? d - - - - - - - - - s-
2016-11-24 21:13:33 · answer #3 · answered by gallichio 4 · 0⤊ 0⤋
(1) 2a+3=a-2
2a-a=-3-2
a=-5
(2)7d<_8d+11
7d-8d<_11
-1d<_11
d= -11 key-: -11<11
2007-03-29 01:57:20 · answer #4 · answered by lipi 1 · 0⤊ 0⤋
2a-a= -2-3
=> a= -5
7d-8d<_ 11
=> -d <_ 11
=> d _> -11
_> means greater thatn or equal to
2007-03-29 13:38:46 · answer #5 · answered by addis 2 · 0⤊ 0⤋
Answer is a = -5 and d >_ -11
2007-03-29 05:22:06 · answer #6 · answered by Laxmi 2 · 0⤊ 0⤋
a= -5 and -11<_ d
no work needs to be shown
2007-03-29 01:52:32 · answer #7 · answered by freakakafreak 2 · 0⤊ 0⤋
Al Gebra, is a terrorist organisation don't get involved!
2007-03-29 01:53:36 · answer #8 · answered by Katey 3 · 0⤊ 0⤋
this is not the study center ... :)
2007-03-29 02:30:01 · answer #9 · answered by nafeesDTH 1 · 0⤊ 0⤋