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 = 0
2*x = 0
2*x = 0
2*x = 0 // : 2
x = 0
x in (-oo:0) U (0:+oo)
(3-4*x)/(2*x) = 7/(2*x) // - 7/(2*x)
(3-4*x)/(2*x)-(7/(2*x)) = 0
(3-4*x)/(2*x)+(-7/2)*x^-1 = 0
(3-4*x)/(2*x)-7/(2*x) = 0
3-4*x-7 = 0
-4*x-4 = 0
(-4*x-4)/(2*x) = 0
(-4*x-4)/(2*x) = 0 // * 2*x
-4*x-4 = 0
-4*x-4 = 0 // + 4
-4*x = 4 // : -4
x = 4/(-4)
x = -1
x = -1
| 15(2/15x)-15(1/15) | | f(-x)=5x+7 | | 9+8+(-3)+4= | | (x-12)(x-10)=0 | | ((11y)^1/2)*((2y)^1/2) | | -16+(-9)+8+25= | | f(x+7)=5x+7 | | y/19=-27 | | 1/4(8y+4)-17=-1/4(12x-72) | | 4(x-6)=2x-14 | | 5x+7=-4+2x+20 | | 3x+5=10x | | 8-4n=4-6n | | 4b^5/2b^4 | | f(-5)=5x+7 | | 7x-3y=13fory | | 6/5x+x=22 | | 4x+29=8x+13 | | 8n^2=64log(n) | | 4x-4-2x=2x-4 | | 8n^2=64(logn) | | -3.6x=10.26 | | -12+77=-5(x+1) | | 8x+4=-28 | | 3w^2-36w+96=0 | | 7k+6-4k/3=11 | | 6*5+2= | | 8x+11-3x=5x+2 | | 12-2x=-5x-9 | | 8-2p=6 | | p-3=-8 | | 10x-18=50x+16 |