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)
21/2 = x-(11/4) // - x-(11/4)
21/2-x+11/4 = 0
53/4-x = 0 // - 53/4
-x = -53/4 // * -1
x = 53/4
x = 53/4
| -9.78(27x-36)=78.24(6x+34) | | 9x^2+5x+8=0 | | a-7=8.03 | | 3x=6n+2x | | -12z^2+17z+5=0 | | 2z^2-z-15=0 | | -7w-12=-3+20 | | 21/2=n+1/8 | | 11x+18=40 | | 3t-2=4(t+4) | | 4x+9x=30 | | -4+11=17x-3-16x | | (5x^2-13x+1)/(x-3) | | (750-x)-600=3x | | 5d^2+17d-12=0 | | 9q+6q= | | 0=x^2-8x-8 | | 3a^2+8a+5=0 | | -7x+22+9x+22=14 | | 0=6x^2+7x-3 | | -4=6t-16 | | 10n^2-23np-5p^2=0 | | 0=6n^2-11n-2 | | 7+2=x | | 0=4ab+2a+6b+3 | | 10m^2+17m+6=0 | | -7w-12=-3w+20 | | x^2-2x-19=-51 | | 40w-(180/(w^2))=0 | | X^4+12x^3+36x^2=0 | | z/3-6=15 | | 24x^2-22x+4=0 |