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)
6/x = 36/42 // - 36/42
6/x-(36/42) = 0
6/x-6/7 = 0
6*x^-1 = 6/7 // : 6
x^-1 = 1/7
-1 < 0
1/(x^1) = 1/7 // * x^1
1 = 1/7*x^1 // : 1/7
7 = x^1
x = 7
x = 7
| -9(2n-6)=n+6 | | x^2-12=9x+10 | | 14x-5x+x=-200 | | x^8+x^7+x^6+x^5+x^4+x^3+x^2+x+1=0 | | 3x^4-32x^2+28=0 | | 4/3x-y=4 | | 60=80x | | 5i/2-i= | | (x^2-6y+5)(2x^2+3y-3)= | | (5-11I)+(7+4i)= | | 6s-14=-19+7s | | 3s-6=-21+8s | | 4/3(3.14)(3375000000) | | 6(2x-7)-4=6(x-2)+2 | | (2x+6)(x-1)=7x | | 2y-5x+1=0 | | 3x-6x+10=4x+38 | | 12x^2=x+6 | | (5x-7)(x+5)=23 | | 300=(a+30)5 | | -8/7=-1/6x-4/3 | | -2/5x-1/2=2/3 | | x^2/0.25-x=1.8*10^-5 | | lnx=1/5 | | 4c/9=8 | | h(t)=-16t^2+25t | | 2(10x+27)+x=180 | | (6f)+(3f)+f=550 | | 6b+24=180 | | 5b+24=180 | | (6f)(3f)+f=550 | | e^4x=5-2x |