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)
(3/4)*x^2+8*x+20 = 0
3/4*x^2+8*x+20 = 0
DELTA = 8^2-(3/4*4*20)
DELTA = 4
DELTA > 0
x = (4^(1/2)-8)/(3/4*2) or x = (-4^(1/2)-8)/(3/4*2)
x = -4 or x = -20/3
x in { -20/3, -4 }
| 1/4(10x-4)=8 | | -2(4n-3)=26-3n | | 3(y+5)=5y+35 | | 4/7z=16 | | -33+2x=-6(1+5x)+5x | | -v-34=8v-8(v+5) | | C=5/9(f-2) | | 2x-40=-8(4x+5) | | 3=2y+7 | | 8(a+5)=40+8a | | 8(a+5)=13-n | | 2-6x=5-5x-1 | | -0.10(92)+0.75x=0.05(x-16) | | -5/7n=-10 | | 150+2=195-1 | | -0.10(16)+0.40x=0.05(x-18) | | -2t+9=4-9 | | -2t+9=4+9 | | 2-3n/4n=3n/6 | | 4/x^2-9-4+20 | | 5(2a-3)+2a+3=0 | | 5*a=8-a | | 4x-5x+7=17+9x | | 6+4x=3x-3 | | 4x-4=3x-2 | | 7x-21=5x-9 | | 12y/1/2 | | 13+2x=3+6x | | -19x=-8x+22 | | 8(2c-1)=40 | | 42/52=x/365 | | 42x/52=x/365 |