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 = 4/7 // - 4/7
3*x-(4/7) = 0
3*x-4/7 = 0
3*x-4/7 = 0 // + 4/7
3*x = 4/7 // : 3
x = 4/7/3
x = 4/21
x = 4/21
| ax+2b=7 | | 8x-64x^-1/2 | | 2x^2+22x-154=0 | | (2x+25)(3x-10)= | | -12720+20d=-6000 | | x^2+2x^2y+3xy=0 | | h=y-f/x | | x+2x+3x=8x-x | | 9x^2+y^2-6xy+6x-2y=0 | | -5+x-7=24 | | 8y=2y+35 | | 12x-12x=24+48 | | 2x-y-1=x+3y | | (4)sin(3x)=2 | | (x^2/3)=5 | | 3x-2(2x-5)=2(x+3) | | x^2/3=5 | | 0.32n=75 | | -6=14-11x | | 3/x=7/11 | | (-1-5i)-(2-5i)= | | 12=14-2x | | 2m^2+3m-5m^2+4m-5=4 | | -3x-x+2x=8 | | 16t^2+80t+384=h(t) | | x/(-5)=20 | | 7+5w=-3 | | x^2-110x+195= | | 5x+3(-x-3)=2 | | 7+5w=-38 | | x+x+3x+2x=23 | | 6x-6x=80-108 |