If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n+n+1=131
We move all terms to the left:
n+n+1-(131)=0
We add all the numbers together, and all the variables
2n-130=0
We move all terms containing n to the left, all other terms to the right
2n=130
n=130/2
n=65
| 1÷3x+1÷2=-7÷4 | | 4(w-2)-2=-3(-8+6)-8w | | 3.14*n=17.5 | | 0k+(–12)=42 | | 20.94=4g+3.94 | | 2x2-9+3=0 | | 21=4(w-3)+5w | | 2+4(3x-1)=-3(4x-1)+9x | | -3x+6/2=12 | | 5/t-2=16 | | 3(x−4)=2x+6 | | x/7+1=-5 | | 3{7x-2}=99 | | 6r-4r+4=6r+4-r | | 4v-8+2(3v+1)=-2(v+8) | | -12x-26=9-7x | | 6x/36=48 | | 27=u+8u | | y/2+6=-9 | | 20=6y-y | | 27a=9 | | 5x+35=2x | | 20=67-y | | (x+2)2+12(x+2)–14=0 | | 13=9x=4-6x | | 4w+5w=63 | | x4–5x2–36=0 | | 3x=1/4x^2+5 | | 30-2x=34 | | –10+p=–19 | | 4+4d=3d-8 | | 3y=9/2 |