If it's not what You are looking for type in the equation solver your own equation and let us solve it.
18u-8=0
We move all terms containing u to the left, all other terms to the right
18u=8
u=8/18
u=4/9
| 80=25x | | x+41=100 | | -u+231=45 | | 14-5x=2× | | 193-w=130 | | 2x-3(x+1)=5x-8 | | 4.50+.2x=3.60+.75x | | 6(x-3)+6=6x+7 | | (1+x)^5=1.66 | | 2(y-8)=40 | | -3/2+m=-19/4 | | 18-2t=5t+9 | | 6m+2m+3=5 | | 〖9x〗^4+16=0 | | 0.213=10^-3*x+0.0300 | | y=10^-3*0.213+0.0300 | | X-9+7x=39 | | X-9=7x | | y=09*0.0156-1E+07 | | 17+3s=-4 | | y=09*0.011-1E+07 | | y=09*0.0056-1E+07 | | y=09*0.345-1E+07 | | y=09*0.205-1E+07 | | 200=x+x-68 | | y=09*0.211-1E+07 | | y=1E+09*0.266-2E+07 | | -(-7h+3)=-2(3h+5) | | 4x+4(x-3)+8=108 | | -12x^2+260x=0 | | y=09*0.266-1E+07 | | 28-7x/12=x/6 |