If it's not what You are looking for type in the equation solver your own equation and let us solve it.
30=u/3+15
We move all terms to the left:
30-(u/3+15)=0
We get rid of parentheses
-u/3-15+30=0
We multiply all the terms by the denominator
-u-15*3+30*3=0
We add all the numbers together, and all the variables
-1u+45=0
We move all terms containing u to the left, all other terms to the right
-u=-45
u=-45/-1
u=+45
| 4=8x=7x=-11 | | 7y-7=-7+6y+6 | | 21−2x=3x−24 | | -7=-7x-5-2 | | -10-6v=5-9v | | 12x+6=-1+13 | | 4r=5r-6 | | 10x-(x-7)=34 | | 7-9f=-10f | | z2+-1(-2+3)*z+(3-(-2))=0 | | -0.8=d+1 | | -v=7-8v | | 5u=6u-4 | | 16+x÷3=-10 | | 16y′′−56y′+49y=0 | | 9z=-7+10z | | -3b-9=-4b | | -8+2g=3g | | 8-8y=-7y | | 3t=2t+2 | | 1.6+x=-2 | | 6v=-6+7v | | 1/2b=3/4 | | -3+d=0.8 | | -3+d=4/5 | | w2–2w–24=0 | | 2•(4x+4=3•(2+3x)= | | 4k=4.2 | | 2•(4x+4=3•(2+3x) | | 3x2-8=3 | | 1x+0=5x+9 | | 4x+10=3x+15x= |