If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( y )
4*y-1 = 0
49*y = 0
4*y-1 = 0
4*y-1 = 0
4*y-1 = 0 // + 1
4*y = 1 // : 4
y = 1/4
49*y = 0
49*y = 0
49*y = 0 // : 49
y = 0
y in (-oo:0) U (0:1/4) U (1/4:+oo)
7/(4*y-1) = 3/(49*y) // - 3/(49*y)
7/(4*y-1)-(3/(49*y)) = 0
7/(4*y-1)+(-3/49)*y^-1 = 0
7/(4*y-1)-3/(49*y) = 0
(7*49*y)/(49*y*(4*y-1))+(-3*(4*y-1))/(49*y*(4*y-1)) = 0
7*49*y-3*(4*y-1) = 0
331*y+3 = 0
(331*y+3)/(49*y*(4*y-1)) = 0
(331*y+3)/(49*y*(4*y-1)) = 0 // * 49*y*(4*y-1)
331*y+3 = 0
331*y+3 = 0 // - 3
331*y = -3 // : 331
y = -3/331
y = -3/331
| 0=45+5x | | 8/(9y-5)=3/(4y) | | 9y/10=3y-6 | | 722=4m+10 | | 3x-85=11 | | 15+6x+5+x=14+2x+7+4x | | 8/(9y-5)=3/4y | | 8/9y-5=3/4y | | 2x-15=125 | | 3(x-4)=x+14 | | 3x+25=13 | | -3f+12=-21 | | (f-7)/g=h | | X+2=-5+4x-2 | | sk+6=k | | F(3)=6x+9 | | -x+4=x^2-3x-1 | | 2x-3x-9=9(x-1) | | 2xx(360/4) | | f(x)=(x)(-2)-10 | | 55+5x=8x | | -16x^2+5=2x | | 7x=23+3y | | X^2-3/7x | | 8p+6p=10-6p | | -2(7x-5)=10 | | 8m-10+9m=92 | | X^2=-3/7x | | 4n-13=63 | | 3x-8=222 | | z-2=7 | | 8x+48=x+6 |