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-(3*y) = 12 // - 12
(1/2)*x-(3*y)-12 = 0
(1/2)*x-3*y-12 = 0
1/2*x-3*y-12 = 0 // + -3*y-12
1/2*x = -(-3*y-12) // : 1/2
x = (-(-3*y-12))/1/2
x = 2*(12-(-3*y))
x = 2*(12-(-3*y))
| 2(x-5)+3x=-7 | | 12z+y-3=w | | 2x+4y+3=-5 | | 12z+y-3/67 | | 5-4n+3n=-2n-5+5 | | -22-n=-1 | | 3y^2=1-y | | -11p-2p=6p+5(p+3) | | -(x-5)+2-x=3 | | 8n-(5n+4)=11 | | 9=-4x-1-x | | -4y-3+3y+7=-4 | | -4y+3+3y+7=-4 | | ((2x)^(7/5))/((16x)^(3/5)) | | 0.54+(24)-0.06x=0.18(18-x) | | 3.5x=350 | | 4/5+5m/7=73/75 | | 3-4b=6b-17 | | 2t(t+1)=7 | | 200cm=m | | X-(8)=22 | | x*x+3*x-1=0 | | 5+4k=k-1 | | 0.5x-10=-10 | | 2m^2=cm | | B/17-3b/17=4/17 | | (x)(x)=3 | | 0.5x-10=-0 | | -2(r+6)=-35 | | -1=4a+5/7 | | (2x+35)=(5x-22) | | -1=-5-v |