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)
2/12 = 78/x // - 78/x
2/12-(78/x) = 0
2/12-78*x^-1 = 0
-78*x^-1 = -1/6 // : -78
x^-1 = 1/468
-1 < 0
1/(x^1) = 1/468 // * x^1
1 = 1/468*x^1 // : 1/468
468 = x^1
x = 468
x = 468
| 10a+5=-95 | | 9g=-7+10g | | 4(x+2)-3=2x+2(4+x) | | 11a-13=12a+7 | | X/4+6x=33-2x | | 3(a+2)=-24 | | 42=w(w-11) | | X/3+2x=12-x | | 4f=-10+9f | | 10x/7=3x-3 | | 7x+3=x-2 | | m/5+6=m/4+5 | | 6h-15=5h+2 | | -2g=-3g+8 | | 11x+9=2(4x+9)+3x-9 | | x-7/10=5/12 | | 7+-18=5t | | 42=w^2-11w | | 8=4(3m+5) | | 6x-64-3x-10= | | (2/3)x+4=7 | | 5(1c+c)=4(c-3) | | x-69/10=5/12 | | 2x^2-7=10x | | 3s-11=5(s+1) | | -3t+2=-t-4 | | -3h+8=-h | | 4n-3=2n+15 | | 9+7t=-7+9t | | 15+2(3)=-3x | | -7(4x-5)+4=-28x+39 | | y=10,000(2)800/400 |