If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12s-4s-8s+s=18
We move all terms to the left:
12s-4s-8s+s-(18)=0
We add all the numbers together, and all the variables
s-18=0
We move all terms containing s to the left, all other terms to the right
s=18
| 5x+52=3x+28=2x-10 | | 2/3x+18=22 | | 4(n-2)=4n | | (5)10=3n+20-n | | -2(6+7x)=-110 | | 42+m=53 | | -(x-7)+4(x+1)=2 | | 263=8x-20 | | 5p2−2p−2=0 | | 97=r−–94 | | 2=w/6=12/9 | | 97=r−-94 | | –9d−12=–10−8d−16 | | 14x-66=180 | | 3(2x+3)–x=x-23 | | 3x+3/6=5 | | 0.4(b+2=2 | | 5x−(14−x)=−30−2x | | 12=-3k+-6 | | h2+9h+8=0 | | 4x+2+3x-7=72 | | 7.1x+42.6=85.2 | | 9g+4(2+9g)=7+7(g+11) | | 5k−3=7k−7 | | 3/5•t=2 | | 5x+(3+2x)=18-1(x+-1) | | x2/6=4 | | 3.4+s=7 | | 2n6=20 | | y−35=5 | | 5x+(3+2x)=18+-(x+-1) | | 80–3k=5k+8 |