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)
x^2+12*x+(35/3)*x+15 = 0
x^2+71/3*x+15 = 0
DELTA = (71/3)^2-(1*4*15)
DELTA = 4501/9
DELTA > 0
x = ((4501/9)^(1/2)-71/3)/(1*2) or x = (-(4501/9)^(1/2)-71/3)/(1*2)
x = ((4501/9)^(1/2)-71/3)/2 or x = (-((4501/9)^(1/2)+71/3))/2
x in { (-((4501/9)^(1/2)+71/3))/2, ((4501/9)^(1/2)-71/3)/2 }
| 10+x+5=12+x+5 | | 3x^2–24x+360 | | 3x^2-2x+8+0 | | 3x^2–24x+36=0 | | x+3xx+3 | | 4v-3v=19 | | 9x-15/3=4 | | t=s-2/5 | | 4r+3r=14 | | x^3-6x-2=3x^2-6x-2 | | -3xy(5xy-3x+6y)= | | I/12-8=-8 | | 5/2x-1+x+1/4 | | 4x+6=48 | | -4x^2+17x+15= | | 475=(b+17)*25 | | -10=10(-9) | | 22/6=n/15 | | 10k^3/5k | | 8z-13=17 | | 6x+12y=40 | | 10+x=12+x | | y=4x+36 | | 2(x-y)=4 | | 30000X=17000(1-X) | | v/5.2= | | 7(4)-14=14 | | 15n-6.5=53.5 | | 100100+x+4=2 | | 30000X=17000Y | | 4r+24/16=5r-15/5 | | 12x^2-46x+15= |