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 = (4*x)/5 // - (4*x)/5
4-((4*x)/5) = 0
(-4/5)*x+4 = 0
4-4/5*x = 0 // - 4
-4/5*x = -4 // : -4/5
x = -4/(-4/5)
x = 5
x = 5
| 4c^3-2c^2-6c=0 | | 5(2c-3)=3(3c-5) | | 3(x^2-20)-31x=0 | | 6x=60-60x | | 12500065x=600000 | | 3p+12-4p=20 | | 4(x+7)-(x+15)=-11-8(x-3) | | z^2+4iz-8=0 | | 3(x+3)=4(x+1) | | 125000+65x=6000000 | | 2.5y+14=20 | | 3.5y+0.5y=16 | | 6^2/5 | | 4n-4=24 | | 16+3(2n-15)=1 | | 125000+65.00=600000 | | (3y-2)(4y+2)/2 | | 8x^2+2-3=0 | | -6x+1+7x=-10 | | 8=-x-3x+8 | | 9x+5x+x=90 | | 2x-8(x+3+x+6)/2 | | 5d+8e+9d+9e= | | 63-6x=10x-15 | | (m-3)(2m+5)=0 | | 3n+2n+n=180 | | 5x+3x+x=90 | | 8.5t=18.7 | | -6s-14=-16 | | 6s-14=-56 | | -3(2x-4)=9 | | 2(2x+1)=3(x-4) |