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)
4/x-(3/x)+3+4 = 0
4/x-3*x^-1+3+4 = 0
1*x^-1 = -7 // : 1
x^-1 = -7
-1 < 0
1/(x^1) = -7 // * x^1
1 = -7*x^1 // : -7
-1/7 = x^1
x = -1/7
x = -1/7
| 110=37.88+.50x | | 2(5-3a)-4(a+7)=92 | | x^2+19x+24=396 | | 7x+24=6x-2 | | 5x-9/-3=-7 | | 15=4.3n-2.(n-4) | | -9/8y=27 | | -6m-8=-24 | | 3.5y+2.5=20 | | -41+x=19-4x | | 11/30=-a/30 | | -8=B+4-5b | | 4(1.75+y)-y=3y+7 | | 5(x-4)=5(3x-4) | | 12x^2-29x+8=0 | | -6/6+12=-7 | | t=125/5 | | 0.40x+0.50(30)=0.20(117) | | 3x+7x-2x+3-1= | | 9-12%3(2)+1=x | | -20-4x=12-6x | | 0=-16t^2-10t+100 | | 3.1=x/2 | | -(12+6x)=6(x-2) | | 3x-12+6=5x-5+1 | | 3x+8+8x=19 | | 0=-16t^2-10t+3 | | 2(7z-3)+8(8z-4)+38= | | 9-12%32+1=x | | 8m-5/3=9 | | -6y=-3/7 | | 2m+-13=-8m+27 |