2m = n - 3
3m = 2n - 9
2007-11-19 03:27:34 · 4 answers · asked by everthesame17 1 in Science & Mathematics ➔ Mathematics
ok to find n, add 3 to the first solution
3+2m=n
then plug the n into the secon solution
3m= 2(3+2m)-9
3m=6+ 4m-9
3m=-3+4m
subract the 4 m
-m= -3
m=3
plug the 3 for m
6=n-3
n=9
Hope this helps
2007-11-19 03:35:14 · answer #1 · answered by ♥2htoohorse♥ 3 · 0⤊ 0⤋
2m=n-3 ----> n=2m+3
3m=2n-9 ----> 3m=2(2m+3)-9
3m=4m+6-9=4m-3
m=3
n=2*3+3=9
m=3,n=9
2007-11-19 12:14:50 · answer #2 · answered by Hassan E 1 · 0⤊ 0⤋
2m-n=-3
3m-2n=-9
4m-2n=-6
m = 3
n = 6+3 = 9
2007-11-19 11:32:32 · answer #3 · answered by norman 7 · 0⤊ 0⤋
multiply the first eqtn by 2 and then subtract the second eqtn from the multiplied eqtn. This will give you m= +3, so n= +9
2007-11-19 11:33:52 · answer #4 · answered by cattbarf 7 · 0⤊ 0⤋