5x=-15 -4x=36 12+n/2=18
-25=5--6x 2x+3x=-45 7n--n=48
--=subtract -=negative *=multiply x,n=variable
2006-11-06 12:31:58 · 4 answers · asked by jazziqueen8 1 in Science & Mathematics ➔ Mathematics
need to show all work
2006-11-06 12:49:00 · update #1
5x = -15 x = -3
-4x = 36 x = -9
12+n/2=18 n = 12
-25 = 5 - 6x x = 5
2x + 3x = -45 x =-9
7n--n=48 x = 8
2006-11-06 12:39:31 · answer #1 · answered by heartsensei 4 · 0⤊ 0⤋
I take it those are six different problems?
You need to isolate the variables in each problem. For instance, if
5x=-15
I would divide both sides by 5, because 5x/5 = x. So x is -15/5.
2006-11-06 20:40:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋
hey, use these "(" ")" , x for multiply and more spaces, pleaz, i can't read them.
2006-11-06 20:35:08 · answer #3 · answered by AlvaDaGansta 4 · 0⤊ 0⤋
no offense , but , = comma
2006-11-06 20:46:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋