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 = 0
3-1/2*x = 0 // - 3
-1/2*x = -3 // : -1/2
x = -3/(-1/2)
x = 6
x = 6
| 2r^2-4r-35=0 | | 12-3x+9-18x= | | v=1/3(3.14)(20)2(17) | | 7/2x+1 | | ln(x)+ln(2x+1)=0 | | 1/5(60-15x)+3/4(12-24x) | | 3n^2-12n-36=0 | | 2r-4r-35=0 | | (3y+9)(3y+9)= | | 4x+x-9-2x+4=4 | | -14x=1 | | 2+6w=-3 | | 1205(7x-11y)= | | 4m^2-16m-49=0 | | 8-y=0+y | | (5+u)(2u-9)=0 | | 6k^2+12k-52=0 | | -b-2= | | -2(w-6)=-3 | | 8v^2+16v-10=0 | | 6=5z-8 | | 19x=2500 | | 8(y-10)=6 | | 3(0)+5y=60 | | -8x+92=2x+15+x | | 4+x^2-4x=0 | | 3a^2+12-36=0 | | -10=3w+5 | | -3x+36=6x | | 8n^2+16n-40=0 | | 5x-1=3x-9 | | -30=-9x+3 |