If it's not what You are looking for type in the equation solver your own equation and let us solve it.
V in (-oo:+oo)
V/3-15 = 13 // - 13
V/3-15-13 = 0
1/3*V-28 = 0 // + 28
1/3*V = 28 // : 1/3
V = 28/1/3
V = 84
V = 84
| 77x=36 | | (4x-1)=(3x+4) | | 12.25x*0.6=19.08 | | 2x+3-6x+5= | | 5x-42/3+2x+1/8=X+13/12-3-X/4-1/3*(38x+1) | | 9-5n=-3n-9 | | -4=8a-48 | | 4x+6=4x-1 | | w-18=2w | | 5x+47=80 | | 5x+20=(-5x) | | -x-1=x+1 | | -5j=-3-8j | | 1+6n=1+6n | | r/12=8 | | 8+7-9k=8k-2 | | 12x=32+8x | | 125m-100m+43425=45000-200m | | 2x+6+6x-2=180 | | -2x+23=x+5 | | x/-3=7/18 | | 7x=7(18) | | 2=4.5*-6+b | | x/-=7/18 | | 3v+16=70 | | 178x=200000 | | 4y=7+3y | | 9+3v=8v+4 | | -15-15c=-16 | | 13x-236=4x-11 | | 5+10c=-7+8c | | 3(x+6)+8x=10x+20 |