If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
200 = 500*(1/2)^2*x // - 500*(1/2)^2*x
200-(500*(1/2)^2*x) = 0
200-500*(1/2)^2*x = 0
200-125*x = 0 // - 200
-125*x = -200 // : -125
x = -200/(-125)
x = 8/5
x = 8/5
| -4=n+5 | | 7/18/58 | | 14a-7b=0 | | 9w+5=6x-11 | | −3z/225 | | f-1/5=4/5 | | (8d+4)(8d-3)= | | (x-3)=-5 | | 45=5/3u | | 2x-3b+5c= | | 2x^2=43 | | 2X+6-3X-3=2X+3 | | 7/1/58 | | 2u/3=4 | | 8.5-4=a | | -4+3x=16+12x | | −7/12x12 | | 4xsquared=121 | | -3(4w-7)= | | 7m-27=37 | | 4x+y=-3x^2+10 | | Log[12](6x+54)-Log[12](x)=1 | | 4x+6x-17=85-7x | | 3g+2=76 | | 3y/5=12 | | 50000+x+.5x=440000 | | 4u+8=30 | | (3f-3)(3f-3)= | | 16=(4x-1)-(x-5) | | 5u-20=6 | | 3G-2=76 | | 62+9=132-12 |