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-6 = 12 // - 12
(1/2)*x-12-6 = 0
1/2*x-18 = 0 // + 18
1/2*x = 18 // : 1/2
x = 18/1/2
x = 36
x = 36
| 15x^4-50x+60=0 | | 14y/18xy | | 30c^2+7c-2= | | 12x-24=14 | | 40u^2+11u-2= | | x*1.15=1000 | | d+b=d | | (-2z^3/y^2)^2 | | x^2-28x-93=0 | | 2m-10=40 | | 7x^2-58+2x^2=3x^2+2 | | X=1000+-0.15x | | logx=0-3 | | 14b^2+19b-3= | | w^2-7w+50=0 | | a/5=a/2-3 | | 53=5/12x | | a/2-a/5-3= | | (2-y)(3y+8)=0 | | 16t^2-29t-12=0 | | 15a^2-28a+5= | | 4t^5-20t^4+24t^3=0 | | 9x-18=2x+7 | | 4t^5-36t^4+80t^3=0 | | 7y-4x=15 | | 18u^9v^9-24u^5v^4x^3=0 | | W^2+3w=42 | | 16x+24=20X | | 5t^5-30t^4+40t^3=0 | | 12x+4y=12 | | e^(1,43*((x/1-x)^2,21)) | | -3h=0 |