If it's not what You are looking for type in the equation solver your own equation and let us solve it.
30=2u
We move all terms to the left:
30-(2u)=0
We move all terms containing u to the left, all other terms to the right
-2u=-30
u=-30/-2
u=+15
| 6z+35=10 | | z-58/6=4 | | 7b^2-31b+20=0 | | 1x-3=-4 | | f+137=4 | | m/3-3=5 | | -6b+14=24 | | 3-3x=7x+4 | | 3x=‘54 | | 3x–5=13 | | 2x^2+3x-420=0 | | 6d−5d+3d=12 | | 15=v/2+12 | | 3x=(6x-10) | | 13=p/3+9 | | 3p+7p-4=76 | | x0.004=40 | | 13=p3+9 | | 13=p3+ 9 | | 2(2x–5)–10=40 | | F(x)=-4x²-8x | | 63=3u+4 | | 3x-66=14x | | -4-3x=-2x–3 | | x0.3=300 | | 10/10+x=35/65 | | 72-2m3=-56 | | 72−2m3=−56 | | 5w+11=4w | | -1,1x–3,4=2,1x-10,4 | | 2(4x-4)=7(x+3 | | 9x+38=57+10x |