If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( Y )
Y = 0
Y = 0
Y = 0
Y in (-oo:0) U (0:+oo)
12/7 = 6/Y // - 6/Y
12/7-(6/Y) = 0
12/7-6*Y^-1 = 0
-6*Y^-1 = -12/7 // : -6
Y^-1 = 2/7
-1 < 0
1/(Y^1) = 2/7 // * Y^1
1 = 2/7*Y^1 // : 2/7
7/2 = Y^1
Y = 7/2
Y = 7/2
| 2(1x+2)/3=4x-1 | | -(2x+7)=8(-12+9x) | | 27/11-x=5/7 | | 81y^2-9x^2=729 | | 7(1-2n)=-91 | | 3k^2+5x+8=6 | | 3-4(2+1)=3z-(2+z) | | 25x^2-35y^2=875 | | 2+(-5x)=12 | | 5x^2+4x=3 | | 2(1x+1)/4=3x-2 | | .02x=75 | | 8x-4=31 | | -8=-20-2/3x | | 9x^2-49y^2=441 | | 4x-2+2=4-(-9+3) | | 12+9=42x+28 | | 4x+39=13x-57 | | 10x-1-40x-80=-531 | | 0.2x=75 | | 5(5a-7)=140 | | 6+5a-6a2/3-2a | | 2x^2-1x+5=0 | | 25x^2-16y^2=400 | | 0,2-0,01x=0,4x-0,08+0,11x | | (12+9)/(6x+4)+5=12 | | -a+3=5s+21 | | 54x+8=2 | | X^2+14x+c=0 | | -4(3-6x)=108 | | 30p-75-10p+25=60p-80 | | x^2=-15-8x |