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)
(0.9*x^2)/3 = 0
0.3*x^2 = 0 // : 0.3
x^2 = 0
x = 0
x = 0
| 4(x+2)=9x+5-5x+3 | | A/5=-5 | | 7x-1(9-4x)=3(x-1) | | x+5/5+x-3/3=8/5 | | 9989= | | y=-137 | | 4x+6+7x-9= | | (x+5)62=36 | | x/3-x/6+5=x+5 | | x-1/5+1/5=-x/10 | | -1=-x/14 | | -3n=81 | | -2(3-2z)-8=5z-(z+4) | | -3b+4(-3-7b)=-6(2+b)-2b | | 4z^2+z^2+6a= | | 18=18x | | 1/7=-52/7 | | 9X^3+8X+X^3/5-8X | | r-(-23)=5 | | 9X^3+8X+(X^3/5)-8X | | -15+3n=8(1+n)+2 | | 7x+2/7=7x-5/14 | | 5/x^2+11 | | 4/5n=10 | | 4/10= | | 9x+5=5x-31 | | y-18=3 | | 13y-4*y=17 | | y=0.45+19 | | 18v^3+33v^2-105v=0 | | 207=-23k | | -17/7=-52/7 |