2n-9=-4
4n - 2n = 18 Therefore, 2n = 18 Therefore, n = 18/2 = 9
Subtract 2n from each side: 3n - 9 = 6 Add 9 to each side: 3n = 15 Divide both sides by 3: n = 5 Therefore, n = 5
9+9+9+9 = 36
If I am correct, 9 plus 7 equals 112.
9 - 5n
3 + 3n = 9 + 2n + 4n n = -2
6+5n=2n-9Isolate the variable by subtracting 2n and 6 from both sides.5n-2n=-9-63n=-15n=-5
5n + 1 = 10 + 2n5n - 2n + 1 - 1 = 10 - 1 + 2n - 2n3n = 93n/3 = 9/3n = 3
18n + 27 or 9(2n + 3)
2n-9=-4
I'm assuming you are solving for n.2n + 6 = 7n - 9 {add nine to each side}2n + 15 = 7n { subtract 2n from each side}15 = 5n {divide each side by 5}3 = n
Subract 5n from both sides and you get 9=-3n, then divide bother sides by -3 and you get n= -3
If 'n' is 8, then (2n - 7) is 9 .
5n - 9 = 2n + 6 : Add 9 to both sides 5n = 2n + 15 : Subtract 2n from both sides 3n = 15 : Divide both sides by 3 n = 5
4n - 2n = 18 Therefore, 2n = 18 Therefore, n = 18/2 = 9
Subtract 2n from each side: 3n - 9 = 6 Add 9 to each side: 3n = 15 Divide both sides by 3: n = 5 Therefore, n = 5