If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
(2/3)*b+9 = -15 // + 15
(2/3)*b+9+15 = 0
2/3*b+24 = 0 // - 24
2/3*b = -24 // : 2/3
b = -24/2/3
b = -36
b = -36
| 125+(4-8)= | | (2x)/(x-2)=5+(4x^2)/(x-2) | | x+8=3x-2 | | 2b/5-4=-36/5 | | t^2-5t^2+4t=0 | | -8(0.2x+0.4)-1.9=-0.3 | | x/2+x/7=9/2 | | 2b/5-4=36/5 | | 3x+7-8(x+1)=2x+4 | | x-8=3x-2 | | 1/3=954g | | 0.08(d-100)=450 | | yz+4z-5y-20= | | 6x-24y=96 | | 2a/7-25/7=-3a/7 | | (9x-5)/(5-9x)=0 | | 6a^2-18a-24=0 | | -9*2+2y=-18 | | -9*9+2y=-18 | | 6y^2-35y+36/3y-4 | | 0.3=d/11 | | y=2/3(4)+4 | | (4+6i)/(5+3i) | | h/6=8 | | (21/x)-(35/x-2)+4=0 | | (2x^2+4x)/(6x^2-2x)=0 | | 3(-2+x)=4x+1/3 | | 21/x-35/x-2+4=0 | | =5n+2(3n-7)-3 | | 13-3r+2+6r-2r-1=3+2-7 | | 3.00+0.80x+4.50=27.50 | | x^2-6x+22=0 |