If it's not what You are looking for type in the equation solver your own equation and let us solve it.
18u+3u-18u=18
We move all terms to the left:
18u+3u-18u-(18)=0
We add all the numbers together, and all the variables
3u-18=0
We move all terms containing u to the left, all other terms to the right
3u=18
u=18/3
u=6
| 99*x=89*x | | q/3+13=15 | | m.6m+1=-23 | | 8+4/v=7 | | 4x+6+122=180 | | X-151=-8x+38 | | 2.5x–3=2x–2 | | 15h+h-2h-13h=10 | | -6-9w=-8w | | -3/8y=–24 | | 8+4v=7 | | 4x+1=9x-3=180 | | 3(2x+5)=4(3x+7) | | 2x+5x-4=1+(-9) | | 155=12z | | x2-31=5 | | 4(q-17)=4 | | -2x+7-3x=-28 | | 123*x=124*x | | 30+60x=62.50+10x | | 5x-16=7x+16 | | 2b+10=2b-10-5b | | 14=3(3x-6)-4 | | 8c+4=20 | | 77=-7(-r-6)-7(-3r+3) | | 5.51=n+3.35 | | 3r+6r+-4r=-5 | | 29x-3=180 | | 12(2x-3)=4x+1 | | -15-x=-34 | | 8r=4r-12 | | -8m+7m+-13=0 |