If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2n+31+5n+23=180
We move all terms to the left:
2n+31+5n+23-(180)=0
We add all the numbers together, and all the variables
7n-126=0
We move all terms containing n to the left, all other terms to the right
7n=126
n=126/7
n=18
| 3r-14r=11 | | 3x-14+6-4-2×=12 | | 2(3x+8)=6x-16 | | 12-3x-6x=3 | | -7+2-3x=2(x+4) | | X+9x/3=48 | | 26-(13x+8)+5x=43-(11x-17) | | 3-15x=3(6-4x) | | –6z−–8z−–18=–18 | | 5(5a-3)=6 | | 12=6x+5 | | s+5/3=1 | | -18c-(-14c)=20 | | (600+5x)/300+x)=5 | | x3=-64729 | | 3x+21-91=-3x+5x-50 | | 3(y+6)=-3(4y-1)+5y | | 9w+9=54 | | 7+(4x-31=22x-(60+5x) | | 3-2x+x=24 | | 10x-9+4x+15=180 | | 7x−5=−23 | | 6s-4s=16 | | (600+5x)/(300+x=5 | | 1x+8=9x-4 | | X+x*x=54 | | x+10+2x-8=77 | | 9d-6d+-19=17 | | 8n+2=50 | | 28=4(x+5)-8x | | -3(y+8)=-7y+8 | | 4x-2=x/2+6 |