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)
48*x+68 = (8*(b+9*x+12))/2 // - (8*(b+9*x+12))/2
48*x-((8*(b+9*x+12))/2)+68 = 0
48*x-4*(b+9*x+12)+68 = 0
48*x-4*(b+9*x+12)+68 = 0
12*x-4*b-48+68 = 0
12*x-4*b+20 = 0
12*x-4*b+20 = 0
12*x-4*b+20 = 0 // - 20-4*b
12*x = -(20-4*b) // : 12
x = (-(20-4*b))/12
x = (-(20-4*b))/12
| A=u | | (x+8)(x-11)=0 | | 7.3x+3.2y+3.4=0 | | 48x+68=(b+9x+12)*8 | | -3x^2-3-c=0 | | -7x=x+8(1-x) | | 48x+68=(9x+12)*8 | | 66+6x=2 | | c+3=-6 | | x/12=6/18 | | -15+10x=95 | | (a-1)(a-1)-2a=(a+3)(a-2)-3 | | 0=x^2-28x-64 | | 2u^2+13u-7=0 | | 25x^2+9y^2-50x-90y+25=0 | | 3.4x-5.7y-4.2=0 | | x-6.1=12.2 | | y=0.5x-6.2 | | -4+2=12 | | y=2.2x+6.7 | | 6=6(f+7)+5f | | -2p(p-5)+7p=-5 | | 8x-y+2= | | 2r=208.5 | | (3-3)(3-5)(3+7)=0 | | y^2+12y+80=0 | | -6d+7=8+4d-4 | | y=-2.9x-4.8 | | 9-(4n-1)=8-5n | | (x-3)(x-5)(x+7)=0 | | 3/2x-1/6=-7/6x-1/3 | | 3r-2=-5r+14 |