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)
4*x-(9/2)+12 = 0
4*x-9/2+12 = 0
4*x+15/2 = 0 // - 15/2
4*x = -15/2 // : 4
x = -15/2/4
x = -15/8
x = -15/8
| 51x^2-5x-4= | | x+x+4=238 | | -(6y+5)-(-5y-7)=-5 | | 14-2x+39x-18x=256-60x-657x | | 13-42/7 | | 7+3p-4=9p+10-5p | | -x/3+58= | | -3b=-12 | | 2b+3(b-2)=4 | | -14n+4=-13n-17 | | -8w^2-8w+19=0 | | 12y=11(y+1) | | 4n+10n=28 | | -7.7x=15.4 | | 7-(5x-12)=1/3(4x+60) | | 16-11x+12=-15x | | -57+23+x= | | r-15=-13 | | t(4+1)=0 | | 1.6q-3.3-2.2q=-1.6q-4.7 | | 2x+0.8-3.5=x | | 37x-625=0 | | 36= | | 25s^2+90sp+81p^2= | | 1/w-1=-8-5/w-2 | | 3xy-y^2=14 | | 6(x-4)=11/66 | | 14-10x=8-31x | | 2.5=(102-100)/x | | -1/(x^2+2x-35) | | 3q+1p-3(p+q)= | | 3/10(20x-15)=2x-12 |