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)
b/2 = 91 // - 91
b/2-91 = 0
1/2*b-91 = 0 // + 91
1/2*b = 91 // : 1/2
b = 91/1/2
b = 182
b = 182
| 0.2d-1.2=0.4d-2 | | y=6x-33 | | 3h-13g= | | 15x+10y+7y-10+25=180 | | 9x+y=42 | | 4(2-5x)=5-3(1-3x) | | 2x-15=10x+10 | | -6h-6=300 | | 3h/13g | | a/4=36 | | 9x-4=7-2 | | K-9=-15 | | 14u^-4/7u^8 | | 7t=80-9t | | =8x^7-12x^5+4x^3 | | 14x-10=15x+7 | | 6a-11=23 | | 2sin^2x-2cosx-3=0 | | f/9=13 | | 5x+3x+8=6x+18 | | 2x-2x-5=0 | | 100+10x=250+5x | | (4l+60)=(l+20) | | (-2-6i)=-(8+3i) | | 2x^2+10x+6=x^2+5x+2 | | 24x+64y= | | 2.5x=4.7x | | (8i-14)=(2i-6) | | 7y^2-2y-5= | | s-1/3=4/9 | | x+x+20+2x=180 | | 3.5x+4=2(1.75x+2) |