If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(4/5)*x = 8 // - 8
(4/5)*x-8 = 0
4/5*x-8 = 0 // + 8
4/5*x = 8 // : 4/5
x = 8/4/5
x = 10
x = 10
| x-3=-31/8 | | 7+x=31/4 | | x+6=35/6 | | x+1=13/10 | | x-1/2=7/2 | | 15/2=x+7 | | 2/5x=1/5 | | x+2/9=-13/36 | | x-3/10=-103/10 | | -60/7=x-9 | | -2/9+x=-1 | | 2+x=21/11 | | x+1=17/12 | | 32/5=x+6 | | -2/5x=-14/5 | | 5+x=60/11 | | x+1/5=56/5 | | 3/7x=3/56 | | x+7/9=133/90 | | x-5/9=13/9 | | x/7=-3/4 | | x/7=-1 | | x-5=-57/10 | | x+2/5=27/5 | | -62/5=x-2/5 | | x-3/8=-1/24 | | 1/2+x=31/22 | | x+5/9=17/36 | | -3/5+x=-22/45 | | x+6=53/8 | | x+6/7=-64/7 | | 6x+5=9x-21 |