Ok, I've been doing this homework for hours and still don't fully understand it. I have this problem, 4m-n=6 and I have to solve for n. I got it down to -n= 6/4m. what do I do with the -n?? Divide both sides by one perhaps? Plz help.
2007-12-18 15:23:26 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4m-n=6 ... Start with the given equation
-n=6-4m ... Subtract 4m from both sides
n=(6-4m)/(-1) ... Divide both sides by -1 to isolate n. Remember -n really looks like -1*n
n=4m-6 ... Divide
So our answer is n=4m-6
2007-12-18 15:27:54 · answer #1 · answered by Jim 5 · 0⤊ 0⤋
From 4m - n = 6, do not divide both sides by 4m, you must subtract both sides by 4m
-n = 6 - 4m
If you are left with a negative where you wouldn't like it, multiply both sides by -1:
-n(-1) = (-1)(6 - 4m)
n = -6 + 4m
n = 4m - 6
2007-12-18 23:28:14 · answer #2 · answered by Jacob A 5 · 0⤊ 0⤋
First you can not devide by 4m on the left or you would get
1-n/4m=6/4m
-n=6-4m subtract 4m from both sides
n=-6+4m multiply both sides by -1
n=4m-6 reorder
You are on the right track, just watch for trains.
2007-12-18 23:40:01 · answer #3 · answered by saejin 4 · 0⤊ 0⤋
n=4m-6
2007-12-18 23:27:54 · answer #4 · answered by Jim W 7 · 0⤊ 1⤋
move n to the right and 6 to the left
4m-6=n
2007-12-18 23:28:40 · answer #5 · answered by golffan137 3 · 0⤊ 0⤋
Multiply both sides by (-1) which has the effect of changing the signs of both sides.
n = -6/4 m = -3/2 m = -1.5m
2007-12-18 23:29:01 · answer #6 · answered by ozperp 4 · 0⤊ 2⤋