If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x-7 = 0
2*x-7 = 0
2*x-7 = 0
2*x-7 = 0 // + 7
2*x = 7 // : 2
x = 7/2
x in (-oo:7/2) U (7/2:+oo)
(3*x+4)/(2*x-7) = 5 // - 5
(3*x+4)/(2*x-7)-5 = 0
(3*x+4)/(2*x-7)+(-5*(2*x-7))/(2*x-7) = 0
3*x-5*(2*x-7)+4 = 0
39-7*x = 0
(39-7*x)/(2*x-7) = 0
(39-7*x)/(2*x-7) = 0 // * 2*x-7
39-7*x = 0
39-7*x = 0 // - 39
-7*x = -39 // : -7
x = -39/(-7)
x = 39/7
x = 39/7
| 5/7=x/42 | | 3x+4/2x-7=5 | | 4k^2-20k+16=0 | | -32+3x=-8(4x+4)-6x | | (y+5)/x=-4/5 | | x^3-x^2-30=0 | | 2x^2+x-1/2=0 | | 31/3*21/3 | | x+200=300 | | z+8/z-9=11/-7 | | -2(3x-2)=-3x+7 | | 9x^2+6x=-2 | | 1/3x+7=12 | | 2x+36-2y+x+y=180 | | 2x+36-2y+x+7=180 | | 1/w-1-1/5w-5=4/5w-5 | | (4h-3)-(2h-8)= | | 33-7(n)=9075 | | y=220x^2+25x | | -4+10x-4x^2=0 | | 18069333.33333=(1/3)(440^2*x) | | 5x-12=16-12x | | (x-5)(x-6)=x^2+3x+7 | | 4(n-4)=1+5n | | y-4=6(x-6) | | x(a-b)-x(a+b)+4b^2=0 | | 63-7x=2x+16 | | 4w+3=-7 | | 4w+3=7 | | y=6-3 | | 2t-3=-3t+2 | | x*x+14=1887 |