a+(-7)+8
2007-01-04 12:24:02 · 9 answers · asked by Lynette B 1 in Science & Mathematics ➔ Mathematics
a= -1
2007-01-04 13:08:52 · answer #1 · answered by symperl 2 · 0⤊ 0⤋
a+(-7)+8
=a-7+8
=a+1
2007-01-04 17:13:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
First: the expression can also be written as (a - 7 + 8) in which, the negative/subtraction sign dominates.
a - 7 + 8
Sec: solve > combine "like" terms > -7 + 8
a + 1
2007-01-04 12:59:29 · answer #3 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
a=15
2007-01-04 12:32:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Hmm, I will assume you mean a + (-7) = 8, which would mean a = 15.
2007-01-04 12:25:44 · answer #5 · answered by JasonM 7 · 0⤊ 0⤋
a-7+8
=a+1simplified form
if youequate it to zero
a=-1
2007-01-04 12:26:27 · answer #6 · answered by raj 7 · 0⤊ 0⤋
The only thing I can see to do is simplifiy it, which would be a + 1
2007-01-04 12:26:42 · answer #7 · answered by Me 2 · 0⤊ 0⤋
me is right
a+(-7)+8
a-7+8
a+1
2007-01-04 12:34:20 · answer #8 · answered by kain_odeh 2 · 0⤊ 0⤋
no thank you
2007-01-04 12:25:57 · answer #9 · answered by Anonymous · 0⤊ 2⤋