3 + 9 = 12
your expression is this... n+5=3+12 n+5=15 n=10
n=3
Double Dutch
If n + 7 = 12, then n = 12 - 7
6n -3=2n+9 6n-2n=9+3 4n=12 n=12/4 n=3
Yes it does. Very good !
N=0.
2n plus 7 equals 19 2n equals 12 n equals 6
6n+3=15 6n+3-3=15-3=12 6n = 12 n=12/6 = 2
n=22 22 +12 34
5n - n = 8 + 4 ie 4n = 12 so n = 3