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*x-(-2*x)-6 = (4/5)*(x-4)+20*x // - (4/5)*(x-4)+20*x
3*x-((4/5)*(x-4))-(-2*x)-(20*x)-6 = 0
(-4/5)*(x-4)+3*x+2*x-20*x-6 = 0
3*x-4/5*(x-4)+2*x-20*x-6 = 0
3*x-4/5*(x-4)+2*x-20*x-6 = 0
11/5*x+2*x-20*x-6+16/5 = 0
21/5*x-20*x-6+16/5 = 0
16/5-79/5*x-6 = 0
-79/5*x-14/5 = 0
-79/5*x-14/5 = 0
-79/5*x-14/5 = 0 // + 14/5
-79/5*x = 14/5 // : -79/5
x = 14/5/(-79/5)
x = -14/79
x = -14/79
| -5a+36+8a=3a-9a | | X-1+5x=-6 | | 30x+8=188 | | x+y/5=10 | | -104=-5p+3p | | 5a=1/5(5a+25) | | 3x^2-5=70 | | 3(4y-2)=(2y+5) | | 3.3x+2.7x-4.6=7.4 | | 7p-13p-p=-147 | | 37=8x+5 | | (y-3)-(y+7)=3y | | 125/8+7/3X=-13 | | x+1/2y=6 | | 5x+3=-x+12 | | (-3x^4y^2)= | | 1/x-2=5 | | 14=5x-5 | | 4x/5+21x/5 | | 12x^5/6x^2 | | 8+2(z-3)=5z | | 6x^2-17+13=20x^2-32 | | 5X/2/4=-20 | | 36.9=3.7-14.9 | | h^2+5h-155=0 | | 56=14y | | 4x+7=67-2 | | 3n+60=46-4n | | 3(5-z)-27=17z-4(3+5z) | | 9m-12=2m | | 4(x+1.50)+5x=33 | | 7x+x=16 |