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+344)/2 = 0
(x+344)/2 = 0
(x+344)/2 = 0
x+344 = 0 // - 344
x = -344
x in (-oo:-344) U (-344:+oo)
(344-x)/((x+344)/2) = 3.325 // - 3.325
(344-x)/((x+344)/2)-3.325 = 0
(2*(344-x))/(x+344)-3.325 = 0
(2*(344-x))/(x+344)+(-3.325*(x+344))/(x+344) = 0
2*(344-x)-3.325*(x+344) = 0
-5.325*x-455.8 = 0
(-5.325*x-455.8)/(x+344) = 0
(-5.325*x-455.8)/(x+344) = 0 // * x+344
-5.325*x-455.8 = 0
-5.325*x-455.8 = 0 // + 455.8
-5.325*x = 455.8 // : -5.325
x = 455.8/(-5.325)
x = -85.59624413
x = -85.59624413
| 1439980=-2.02x^2+77.85x+746 | | 4x^3+10x^2-28x-70=0 | | (344-x)/(344+x)=6.65 | | x-3(-2x+25)=9 | | 21--12= | | 15x=18x+-42000 | | x^4+10x^3+16x^2=0 | | 6+9=10 | | 60+25x+x^2=0 | | 6x-5(-2x+20)=12 | | 0=3x^2+10x+9 | | -1x^2-25x-60=0 | | 12*1+4y=-45 | | 8x-6y=8 | | 12*0+4y=-45 | | 6x-5(-2x+9)=18 | | 2+3*4-6+3= | | 2+3*4-6+3x^2= | | 5x+3/x+4-4x-1/x+4 | | 2+3*4-6+6= | | 2/3p=5 | | 4s^2+21s+5= | | (2(3y-12))/3=3y-13 | | x^2+.06x-.3=0 | | 9x=205 | | 2x+44=x^2+9 | | -44-4+(-3)=8 | | 3*1/3x | | 8-9u+u^2= | | n/(-4)+(-3)=8 | | n(-4)+(-3)=8 | | n-4+(-3)=8 |