If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
3*n+10 = 13 // - 13
3*n-13+10 = 0
3*n-3 = 0 // + 3
3*n = 3 // : 3
n = 3/3
n = 1
n = 1
| 6n+3=-33 | | -2/3a+10=310/33 | | 8+4/5n=84/5 | | 2/3+2/5a=74/75 | | 10/5+2(6x+3)=4 | | 5/7d+4/7=29/77 | | 7a-1/4=-31/12 | | 7k+2=72 | | -3/4b+2/3=17/12 | | 2b+7/8=7/8 | | 3a+10=34 | | 3a+2/5=32/5 | | 3/5t+8=169/20 | | 5/6m+6=31/6 | | 5/7b-1/2=-1/12 | | 1-2/3b=-17/3 | | 1/2+3k=-3/4 | | -1/2+4a=-11/6 | | (6n-12)/5m | | 1/2m+7=119/18 | | 9+m=97/11 | | 3/5+2n=103/5 | | -4/7m+1/2=37/154 | | -1/2n+8=83/11 | | -1/5+5/6w=23/10 | | 2t+1=5 | | 6d+1=-53 | | 5/6x-4/5=46/5 | | 4x+9/10=49/10 | | 6d+2/3=-88/3 | | -2/5n+4=176/45 | | 1+2=5 |