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)
-1/x = -49 // + 49
49-1/x = 0
-1*x^-1 = -49 // : -1
x^-1 = 49
-1 < 0
1/(x^1) = 49 // * x^1
1 = 49*x^1 // : 49
1/49 = x^1
x = 1/49
x = 1/49
| 3x+9=-43+10x | | x=-4+-0.4y | | 4(1+105x)=9 | | 5(y+6)=90 | | 20(5)+15=415 | | -2(k+4)+3k=26 | | 3x^2-x=13x | | -2c=-13 | | 5b+5=0 | | 8x=-2(3-2x) | | 2x+6-10=100 | | 4b-19=0 | | 16=-5b | | 3(50)=1000 | | (x^3-343)/(x-7) | | 729y=64y | | n^3+5n^2-4n=0 | | -4t=6 | | -12=16a | | 0.125(x+6)=2.50 | | x^4-6x^3+5x^2+24x-36=0 | | 0.125(x+6)=250 | | 13=5x-6 | | 6w+2=5w-9 | | -3y=6.6+3y | | 0.10(x+5)=2.40 | | (2-4/9)2 | | 0.10(x+5)=2.00 | | 10/1+3i | | x+4x=32 | | -5p=4 | | 3x(4x+10)= |