2006-06-15 10:08:19 · 12 answers · asked by nubianprince626627 1 in Education & Reference ➔ Homework Help
n= - 2
2006-06-15 10:12:43 · answer #1 · answered by eternity_spider 3 · 0⤊ 0⤋
2n - 5 = 8n + 7
-5 = 6n + 7
-12 = 6n
n = -2
2006-06-15 10:11:59 · answer #2 · answered by mommy_mommy_crappypants 4 · 0⤊ 0⤋
2n-5=8n+7
2n=8n+7+5
2n-8n=7+5
-6n = 12
-n=2
n=-2
2006-06-15 10:13:44 · answer #3 · answered by Matthew D 1 · 0⤊ 0⤋
Answer with all the working ("teach a man to fish")
2n - 5 = 8n + 7
2n - 8n = 7 + 5
-6n = 12
n = 12 / -6
n = -2
Hope you appreciate the working.
2006-06-15 10:12:44 · answer #4 · answered by Anonymous · 0⤊ 0⤋
2n - 5 = 8n + 7
2n - 8n = 7 + 5
-6n = 12
-6/-6 =12/-6
n = -2
2006-06-15 10:17:57 · answer #5 · answered by asogdy 2 · 0⤊ 0⤋
n= -2
Step 1: Add the 5 to the other side
Step 2: Bring the 8n to the other side (because you are trying to get the variables on one side and the numbers on the other)
Step 3: Divide by the coefficient of n (-6)
Finish: You should end up with negative two. Hope that helps!
2006-06-15 10:10:42 · answer #6 · answered by Susie 6 · 0⤊ 0⤋
2n - 5 = 8n + 7
2n = 8n + 12
-6n = 12
n = -2
2006-06-15 13:56:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
2n-5=8n+7
Get the variables on one side of the equation
(Do the same thing to both sides to keep it equal, subtract 2n from both sides)
2n-5-2n=8n+7-2n
(Smiplifly the equation)
-5=6n+7 - don't forget that was a negitive 5
Get the intergers on one side (subtract 7 from both sides)
-5-7=6n+7-7
-12=6n
divide both sides by 6 to get "n" by its self
-12/6=6n/6
-2=n
OK?
2006-06-15 10:29:29 · answer #8 · answered by Gregory B 3 · 0⤊ 0⤋
n=-2
2006-06-15 10:10:30 · answer #9 · answered by eilnay 2 · 0⤊ 0⤋
n= -.2
2006-06-15 10:13:13 · answer #10 · answered by perfectawesome 1 · 0⤊ 0⤋