If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2n+n=72
We move all terms to the left:
2n+n-(72)=0
We add all the numbers together, and all the variables
3n-72=0
We move all terms containing n to the left, all other terms to the right
3n=72
n=72/3
n=24
| 5x+4x-51=34-8x | | -5x+3=2x+7 | | (3v-5)(v+7)=0 | | 19=3(z+-2)-7 | | 4(3x-5)=-56 | | –3c−10=2c | | n^2-16n+63=-7 | | 11x=2x-81 | | y2+18y+56=0 | | 5.3=-4w+30.9 | | n=95n= | | 20k=33k-5 | | -4z+20=-3z+1 | | 2/5x+8=20+3/4x | | x4+5=10 | | (j*j)–46j=0 | | 6x-1=13x-36= | | -4z+14=1-3z | | -3x+6=38 | | 2/3(6x-1212)-6=2/5(25-15x)-2x | | 2x-5=3(3x+3) | | 4(t1/4)=3 | | 2x+32*4=x | | q–8=13 | | j2–46j=0 | | 2x-2+2x-2=3x+3 | | 5m=3+27 | | 2(x-3)+7=3x-2(2x+1) | | 0.4=2x=1.2 | | 10y+6=46 | | y=-2y+40 | | 3/4q=-16 |