If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a/3+9+13 = 0
1/3*a+22 = 0 // - 22
1/3*a = -22 // : 1/3
a = -22/1/3
a = -66
a = -66
| 4/13p=87.10 | | (3*x-7)+(x-4)=0 | | 4x^4+3x^2+x-3=0 | | -4v^2+64-84=0 | | 15r^3-150r^2+111r+24=0 | | 44/70 | | 4*x^4-16*x^3+3*x^2+4*x-1=0 | | 8x^2+12x=360 | | 1200=50w+400 | | (n+11)(4n+7)=0 | | 4x-y=3y+7x+8y-4 | | d^2-19=0 | | x+5/4=7 | | q^2+10q+0=0 | | d^2+9d=0 | | t^2-2t-6=0 | | 2x+3+7x=48 | | h^2+3h+2=0 | | x^2+1+5=0 | | b^2-8=-10 | | 5/2-8=-10 | | 121-6x=12x+21 | | 9x-4x=3x+20 | | 3/x+1=6/5x-1 | | y^2+8y-6=0 | | 0,07=80,446x+0,0001 | | 3c^2-5c=1 | | g/0,21=3g/1,05+2 | | 5x+23=13x-38 | | 10x^2+5y^2+6y+5x=0 | | (5x+1)/2-(x-2)/6=(2x+6)/3 | | f^2-400=0 |