2006-10-17 12:46:04 · 6 answers · asked by AB 1 in Education & Reference ➔ Homework Help
you want to get all the n's on one side. so first you can add 4 to each side, so the -4 and 4 will cancel out, so you get -7n+34=10n. then you can add 7n to each side. to get 17n=34. then you divide each side by 17, to get n=2.
if you do the same thing to both sides of the equation, it will not change the answer.
2006-10-17 12:49:43 · answer #1 · answered by Anonymous · 0⤊ 1⤋
2
2006-10-17 12:52:37 · answer #2 · answered by Atlanta's Finest 3 · 0⤊ 1⤋
-7n+30 =10n-4 ?
-7n-10n = -4-30
-17n = -34
n = -34 / -17 (that is, -34 divided by -17)
n = 2
2006-10-17 12:56:50 · answer #3 · answered by Yahoo Qs-Ans 3 · 0⤊ 0⤋
i make all the steps:
-7n+(-10n)+30=-4
-7n -10n =(-30)-4
-17n=-34 then if you divides the first member and the second one by (-17) you obtain n=2
2006-10-17 12:53:24 · answer #4 · answered by menny* 3 · 0⤊ 1⤋
-7n+34=10n
34=17n
2=n
2006-10-17 13:17:36 · answer #5 · answered by AJ 1 · 0⤊ 0⤋
Answer. pay attention in class. then get out pencil and paper and figure it out yourself and quit asking everyone on yahoo
2006-10-17 12:53:51 · answer #6 · answered by Anonymous · 0⤊ 0⤋