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)
(1/2)*x+2*y = 12-((1/2)*x) // - 12-((1/2)*x)
(1/2)*x+(1/2)*x+2*y-12 = 0
x+2*y-12 = 0 // - 2*y-12
x = -(2*y-12)
x = 12-(2*y)
x = 12-(2*y)
| 4-6(w-2)=10 | | y=-2/3(2)+3 | | 9m^2+62m-80=0 | | 0.5s=4s+-21 | | y=-2/3(1)+3 | | 0=2x^2-12x+24 | | -8=-1(1x+4) | | 1/3(x+1)=2/5x+7/9 | | 1/4(x+3)=5x-4(1-x)-4 | | 2/7x+8=14 | | 2x+4(2x)=96 | | 1000/6x | | 9x=2x+29 | | w/7=15 | | 3(x+1)+5=-x | | 36x^2-39x-165=0 | | x^2+150x-43875=0 | | 14+19x=42+12x | | 6x-(3x-6)=5x-4 | | 4y-12y=32 | | 0.2x+5.4=4.7 | | y=0.5x^2+2x-9 | | 212=10x+8y | | 3(x+4)-4=2(x-4)+x | | 3x+7x+10=180 | | Q=2p-250 | | -12-5x=12-7x | | g(x)=2x-8 | | -4gh-4gi+2g-1=10h+4 | | 33=-11(x-6) | | 4g+10=2g+14 | | 18+6k=-5k-7(-7k-8) |