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)
(x^2)/3-9 = 0
1/3*x^2 = 9 // : 1/3
x^2 = 27
x^2 = 27 // ^ 1/2
abs(x) = 3*3^(1/2)
x = 3*3^(1/2) or x = -(3*3^(1/2))
x in { 3*3^(1/2), -(3*3^(1/2)) }
| 8/3c-2c=2/3c-12 | | 2(5c-1)-4=8c+6 | | -.25x+3.8=4.6 | | 2h-8= | | 0=x^2-8x+80 | | 5x/7=3/4 | | 20-12-2x=15 | | 4t-t=5(t+2) | | (7/10)=(3/5)x-(1/4) | | 3x(10)+23=60 | | 0=x^2+4x+0 | | 6x+1=12x-5 | | y^2-16=-7 | | 3x+12=65 | | (-25/3)*(-19/14) | | 4(2x-5)=3-(2x+1) | | 12+4*x+-3*x*x=0 | | 2x^2+8x-6=12 | | 7-2(m-3)=81 | | x*x*x*5-x*x*3+4*x+5=-7 | | x/100=10000 | | (5-5)*x=7 | | m^2x^2-3x-x^2+4=0 | | 6x-10=6x+20 | | 0.03m-1=5.8 | | 8z+12=5z+21 | | d*1.2=320 | | d*0.8=320 | | 1.2x+0.3=0.8x-0.9 | | 30-15=5(X-7) | | 9x-15=6x-9 | | -0.03x+0.15=0.09x-0.09 |