If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
a = 0
a = 0
a = 0
a in (-oo:0) U (0:+oo)
112/a = 1/4 // - 1/4
112/a-(1/4) = 0
112/a-1/4 = 0
112*a^-1 = 1/4 // : 112
a^-1 = 1/448
-1 < 0
1/(a^1) = 1/448 // * a^1
1 = 1/448*a^1 // : 1/448
448 = a^1
a = 448
a = 448
| x^2-yz=3 | | 2.75=m/75 | | N/4-1 | | 134/2= | | 2x+1293=32x*40 | | 46+88= | | A=4/3(h-76) | | 2(4c-1)-4=5c+3 | | 10-(8-6x)=14-2x | | 0.5x+38.39= | | 5x^2=x^2+24 | | -5w(w+22)= | | 56=8(x+4) | | 4r+5=37 | | -3+7x+-8x=-13+8x+-8x | | 6m^2+6m-120=0 | | 17+2y-1=10y-14-2y | | 9w+21= | | 7x-4x+x-9x= | | 50=-16t^2+64t+5 | | 17+2y-1=-14-2y | | 48-2w=4 | | 7ln(5x+2)=-21 | | log(15-2x)=0 | | 2x^2+2x+y^2+2xy+1=0 | | 15+6c=10c-5 | | 1+2x-1=3x-3 | | -2y-4=29 | | (y-2)3= | | -16+5n=-7(-6+8n+3) | | X=150/y | | X=150 |