If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
(4/5)*n = 65 // - 65
(4/5)*n-65 = 0
4/5*n-65 = 0 // + 65
4/5*n = 65 // : 4/5
n = 65/4/5
n = 325/4
n = 325/4
| k-35=21 | | 1+7x=1+7x | | S+35=57 | | 5n-(2n-3)=2n-4(n+2) |