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)
(3*(8-x))/5 = x // - x
(3*(8-x))/5-x = 0
(3*(8-x))/5+(5*(-x))/5 = 0
3*(8-x)+5*(-x) = 0
24-8*x = 0
(24-8*x)/5 = 0
(24-8*x)/5 = 0 // * 5
24-8*x = 0
24-8*x = 0 // - 24
-8*x = -24 // : -8
x = -24/(-8)
x = 3
x = 3
| 10x^4-30x=0 | | -1/9(y-1/5)=-1/5(y-5) | | 9x-6+6x-9= | | -32-9+53x=54 | | 42x=50x-20x | | 1=3x+13 | | 17615+500x=74815 | | 1t+3+8(5+1t)= | | 19/20+1/5d=4/57/20d | | (5x-5)-(4x+5)-(9x-5)= | | 5X(10X-4)= | | 4x+38=58 | | x^2+7x-168=0 | | -3[4-(3b+3)]=5-3(3b+7) | | 17615+500=74815 | | 3/4-12x^2 | | 1/4=a | | -6(-2)+2y=8 | | 3sinx=2-3cosx | | -(5x-6x+6)= | | (7+2x)*2+(x+3)*2+(5x-14)=50 | | 2w+3=4y+5 | | (2x+138)/2=56 | | 8x^3+8x^2-50x-50=0 | | (h+3)/2=(h-2)/4 | | 3(2/5+1/3)-2/5x3 | | 1b+3=2b-7 | | 3sinx+3cosx-2=0 | | 9+5(1t+1)+4t= | | (8)1/49= | | 10x+0y=-20 | | 3x+9-8x+6=6.6 |