If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
(7*r+1/2)*(1/16-(8*r)) = 0
(7*r+1/2)*(1/16-8*r) = 0
( 1/16-8*r )
1/16-8*r = 0 // - 1/16
-8*r = -1/16 // : -8
r = -1/16/(-8)
r = 1/128
( 7*r+1/2 )
7*r+1/2 = 0 // - 1/2
7*r = -1/2 // : 7
r = -1/2/7
r = -1/14
r in { 1/128, -1/14 }
| 5/2x-1=4/3x | | 14y+6y=48 | | 14y+6y=26 | | 3x^2+6x=189 | | 5*x*x+2=315 | | 1600/50 | | x+2*x*3=189 | | [5(3-5)-1]-[2-(5-2)]= | | 7x^2-96=0 | | y=1275+8x | | 2/3x+1/3x | | 0,5(3+2x)+8=0,2(5x+1) | | x^2=-28y | | 4x=-3+n | | 1/4(2x-8)=7 | | v*45=46-v | | 5/6x3/4 | | 7x+8y-4(9x-2y)= | | w=180+15h | | w=180+15h# | | x^2+4x+3=24 | | 2x+2y+2=0 | | (3w+1)(9-w)=0 | | (5-2X)-(4X-3)=3(5-2X) | | 3y+5=9y+6 | | 1/4-x-2x/x-4=0 | | 5(9+2x)=5x+10 | | 3x^2-7x+49=0 | | -(12c-56d-40)= | | 9+9n-4=8n+61-6n | | -2x+6x=26 | | -3e^2x+4=-10 |