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)
6 = a/2 // - a/2
6-(a/2) = 0
6-1/2*a = 0 // - 6
-1/2*a = -6 // : -1/2
a = -6/(-1/2)
a = 12
a = 12
| 76-7x=29x+14 | | 7f+=68 | | 3+5/5-r+3/4 | | 8x-3(2x+7)=-6-9x+73 | | 2x-6=3x+1-2x-7 | | 2r-(5-r)=13+2g | | 2(x-5)*5(x-4)= | | x^2=-18x-40 | | 5x-2+3x+4=90 | | 7*y+15*x=240 | | (-4x+3)+(-2x+8)= | | -5+9=15x-4-14x | | -6y=6 | | 4x-5x=11-3 | | 14/10-r=-4/1 | | 10n-20=60 | | -33.04/z-0.03 | | 13=17-4 | | -22+4C=7(5c-2) | | -4x+6y=-4 | | -101-8x=77-31x | | (x-1)(x-1)+15=0 | | 12x-(1(15)+7)=35 | | b+3+4=24 | | 5y-12y=-18-24 | | -4x-(5x+6)=-7x+3 | | -9x-4y=61 | | -6(-2-1)+3= | | 13=m-4 | | 39.43=8g+3.83 | | 0.004=0.12 | | 4/5=36/1 |