2006-10-10 14:23:42 · 19 answers · asked by ksam_15 1 in Education & Reference ➔ Homework Help
x = -5
2006-10-10 14:25:14 · answer #1 · answered by hoang_hiepsi 4 · 0⤊ 0⤋
5
2006-10-10 14:28:16 · answer #2 · answered by swim chick 3 · 0⤊ 0⤋
x =5
2006-10-10 14:25:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
-3x = 7 + 8 ; x = 15 / -3 ; x -5 or 8 +3x = -7 ; x = -7 -8 /3 x= -15/3 ; x = -5
2006-10-10 14:35:16 · answer #4 · answered by Freesia 5 · 0⤊ 0⤋
-8-3x=7
-3x=15 (all you did was add 8 to each side)
x=-5 (You divide by -3 and you get -5. The reason that you divide by a -3 is because subtraction is essentially a negative number because you could switch the whole equation to -8+-3x=7 and you will get the same answer.
2006-10-10 14:34:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Simple, -3x=7+8,
-3x=15
then, x=-5....good luck...
2006-10-10 14:27:41 · answer #6 · answered by ahmos 4 · 0⤊ 0⤋
X = -5
first, you add 8 to both sides and then you divide -3 by 15
2006-10-10 14:25:44 · answer #7 · answered by bernie 2 · 0⤊ 0⤋
-8-3x=7
first, do the inverse operation of -8, so add 8 to each side
(-3x=15)
then, you divide by the coefficent, -3
(x = -5)
2006-10-10 14:30:52 · answer #8 · answered by 2QT 2B STR8 <3 2 · 0⤊ 0⤋
-8-3X=7
+8 +8
-3X=15
/-3 /-3
X=-5
2006-10-10 14:33:08 · answer #9 · answered by coltsfan65418 2 · 0⤊ 0⤋
-8-3x=7
+8 +8
-3x= 15
---- ---
-3 -3
x= -5
2006-10-10 14:32:36 · answer #10 · answered by Jen 2 · 0⤊ 0⤋