If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-8n+7+12n=31
We move all terms to the left:
-8n+7+12n-(31)=0
We add all the numbers together, and all the variables
4n-24=0
We move all terms containing n to the left, all other terms to the right
4n=24
n=24/4
n=6
| -0.8+4.6c=0.2(20c-4)+0.6c | | 4(3x+7)=14x+15-2x+13 | | d-2.8/2=-14 | | 41.62=9g+3.64 | | 3+x+2=5x+1 | | f-4=6f+2f | | 6x+5=3x−19 | | 2x+48=1x | | 5u-u+2u=18 | | -4.6(-x+2.5)+28.9=-3.4(4-5x | | 5+3x=15x+1 | | 4(w+3)-w=-12 | | F(x)=7x-22/4 | | 3(3x-3)-4=5x | | 25+28=3x+2 | | 4n-12-7n=6-2n+n | | -5n-(-7-4n)=-2(3n-4) | | x+9+4x+14=8x-1 | | 1+4n=1+4n | | (2x-5)+3x=10 | | 12z-9z=12 | | 10x+3=11x-1 | | 5(p-3)-2p=-30 | | 11=-7x+2(x+8) | | -u/2=-27 | | 2x+2=-2/3x+26 | | 11+x+5=2x | | -15-2x=3x | | –7c=–6−10c | | -45=3(-4p-3) | | x÷-8=-3-(-9) | | 12m-4m-m-3m-m=10 |