If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
10/8 = 45/x // - 45/x
10/8-(45/x) = 0
10/8-45*x^-1 = 0
-45*x^-1 = -5/4 // : -45
x^-1 = 1/36
-1 < 0
1/(x^1) = 1/36 // * x^1
1 = 1/36*x^1 // : 1/36
36 = x^1
x = 36
x = 36
| -9d-8=-4(d+4)-5d | | 400-80x-40y+3x^2+4xy+y^2=-80 | | 2x-4+3x-8=3(x+1) | | 4041.50-3778=X | | 8x+8x+8x+4=68 | | 400-80x-40y+3x^2+4xy+y^2=80 | | n/16=64/8 | | x/2-4=54 | | X-3778=4041.50 | | 4x+k=x^2+4x+3 | | 400-80x-40y+3x^2+4xy+y^2=0 | | 27(a+3)-a=0 | | 18x*25y=21820 | | 9y+3=8y-5 | | 10/16=t/72 | | X=4041.50-3778 | | .6(7x+5)=.1-(x-3) | | 3(x+5)=4x | | 0=-3(y+4) | | t(n)=2-7n | | 20x-50+21x=7 | | -12365+155x=0 | | (3e-32)(e+16)= | | 6/7*4/3= | | 1/216=6x | | 7x+6x-36=90-5x | | 6z-8-z+3= | | 8(2+k)= | | (4y-7)(4y-11)=0 | | x-2.2=7.7 | | h(t)=-4.9t^2+3.5t+10 | | 3x^2y^2-xy^2-4y^2=0 |