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/3+1 = 0
1/3*x+1 = 0 // - 1
1/3*x = -1 // : 1/3
x = -1/1/3
x = -3
x = -3
| (x^3+4x^2+5x+2)(x+2)= | | 2(x+5)=3(x+8) | | (x^2+2x+1)(x^2+4x+4)= | | 3x^2-8x+15= | | 5x+6-2=7x-10 | | 5x^2+23x+24= | | (a-3)(4a+5)(a+3)= | | 6.2-3.1y=9.3 | | n+n+2+n+3=-298 | | 4x^2-5x+7= | | 1/7x-1/6y=1/9 | | -y=0.3x+7 | | 8y+70=7y+10 | | k(x)=6x+100 | | 1/2y=x-5 | | -2y=-x | | 17(5)+26=6(7) | | 9x+5y=-3 | | 8y+70=-7y+10 | | 2p/3-12=-3 | | 2x+9(8-2)5/8 | | 5x^2+3x+4= | | n-3n=40 | | 2x/3x | | (2-7x)+(2x+1)=0 | | 2x+48-x=x+7-x | | 3ln(x-1)=9 | | (5x^2-3x)(8x^2+4x)= | | 20a^2+20a=-62 | | 1/2-4+11/2=4-2 | | 5(3x-4)+2(x+2)=10-(x-1) | | X^3+16xy^2-63y^3=0 |