2n -12 = 16 add 12 to both sides 2n = 28 divide both sides by 2 n = 14
5n + 7 = 28 + 2n (-2n) 3n + 7 = 28 (-7) 3n = 21 therefore, n = 7
2n+2n equals 4n
Nonsense.
2n plus 7 equals 19 2n equals 12 n equals 6
2n-9=-4
4n - 2n = 84 2n = 84 n = 42
2n + 19 = -7 2n = -7 - 19 2n = -26 n= -13
Move the 2n over the equals sign. Become 4n (as 6n-2n= 4n) and then if 4n=16 then n=4.
5-2n=3 -2n=3-5 -2n=-2 n=1
If: -6n-2n = 16 Then: n = -2
2n + 8 = -142n = -22n = -11