12+4n = 2n12+4n-4n = 2n-4n12 = -2n-1/2(12 = -2n)-6 = n
5n-2+2=4n 5n=4n n=0
n= -2
4n/7 + 8 = 20 subtract 8 from each side: 4n/7 = 12 multiply each side by 7: 4n = 84 n = 21
4n+13=1 -13 -134n=-12/4 /4n=-3
12+4n = 2n12+4n-4n = 2n-4n12 = -2n-1/2(12 = -2n)-6 = n
5n-2+2=4n 5n=4n n=0
n= -2
10n+12 = 14n-12 10n-14 = -12-12 -4n = -24 n = 6
4n/7 + 8 = 20 subtract 8 from each side: 4n/7 = 12 multiply each side by 7: 4n = 84 n = 21
4n + 3 = 15 4n +3 - 3 = 15 - 3 4n = 12 4n/4 = 12/4 n = 3
4n+13=1 -13 -134n=-12/4 /4n=-3
4n + 3 = 19Subtract 3 from each side:4n = 16Divide each side by 4:n = 4
7n + 2 = 4n + 17Subtract 2 from each side:7n = 4n + 15Subtract 4n from each side:3n = 15Divide each side by 3:n = 5
2n+4n-12 = 06n-12+12 = 126n = 121/6(6n = 12)n = 2
As follows:- 4n+13 = n-8 4n-n = -8-13 3n = -21 n = -7
4n + 5