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)
42/35 = 6/x // - 6/x
42/35-(6/x) = 0
42/35-6*x^-1 = 0
-6*x^-1 = -6/5 // : -6
x^-1 = 1/5
-1 < 0
1/(x^1) = 1/5 // * x^1
1 = 1/5*x^1 // : 1/5
5 = x^1
x = 5
x = 5
| -10(8+x)=150 | | 65.25*x=326.25 | | -40=-7x+2(6x-5) | | 3/12n+10=8/12n | | 6x+2+3y-4=14 | | 3/2x+12=-24 | | 2(x-1/2)=8+2x | | -9.5+(3.7)= | | 4x-9=8x-18 | | 3/2x | | 3(-4)=9-(-3) | | -7x-5(-5x+9)=63 | | 2((1/3)x+4)-1=(4/3)x-3+x | | 3(4)=9-y | | x/20+1=0 | | 3x=9-y | | 12+b/6=9 | | X^2-11x+18=x-2 | | n/22-10=-9 | | 3000/9415570 | | 5x^2+55x+150=0 | | y=13x+82 | | 3.28-11.395= | | 9415570/3000 | | .64=.0625s^2 | | 5x^2-43+24=0 | | -8.32x(-4.7)= | | 10(x+20)=900 | | r/4-7=-1 | | 18y^3+6y^2+2y= | | 5/8a+6-6/8a | | (t+3)5=40 |