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*((4*(x-6))/2) = 5 // - 5
x*((4*(x-6))/2)-5 = 0
(4*x*(x-6))/2-5 = 0
(4*x*(x-6))/2+(-5*2)/2 = 0
4*x*(x-6)-5*2 = 0
4*x^2-24*x-10 = 0
4*x^2-24*x-10 = 0
2*(2*x^2-12*x-5) = 0
2*x^2-12*x-5 = 0
DELTA = (-12)^2-(-5*2*4)
DELTA = 184
DELTA > 0
x = (184^(1/2)+12)/(2*2) or x = (12-184^(1/2))/(2*2)
x = (2*46^(1/2)+12)/4 or x = (12-2*46^(1/2))/4
2*(x-((12-2*46^(1/2))/4))*(x-((2*46^(1/2)+12)/4)) = 0
(2*(x-((12-2*46^(1/2))/4))*(x-((2*46^(1/2)+12)/4)))/2 = 0
(2*(x-((12-2*46^(1/2))/4))*(x-((2*46^(1/2)+12)/4)))/2 = 0 // * 2
2*(x-((12-2*46^(1/2))/4))*(x-((2*46^(1/2)+12)/4)) = 0
( x-((12-2*46^(1/2))/4) )
x-((12-2*46^(1/2))/4) = 0 // + (12-2*46^(1/2))/4
x = (12-2*46^(1/2))/4
( x-((2*46^(1/2)+12)/4) )
x-((2*46^(1/2)+12)/4) = 0 // + (2*46^(1/2)+12)/4
x = (2*46^(1/2)+12)/4
x in { (12-2*46^(1/2))/4, (2*46^(1/2)+12)/4 }
| 150=5(2+4n) | | 7x+9-2x=20+4x+1 | | (p-33.1)+p+(p-24.2)=186.4 | | x-(-3)=-17 | | -9x-4y=0 | | 24/2x | | 1/12z=1/6-11/14-1/12 | | 5x^2+16x+2=0 | | -5(x-4)-21=-1 | | 2k-r=15 | | 2z-3(2+1)=-(52+3)+2 | | -7*2.9= | | 4.43b+3.42f= | | 5/2v+1/3=23/4 | | -7y+2x= | | 16(8c-1)-14=126c+16 | | 3y-5=-17 | | 8x=21x | | -5k+9k=2 | | y-28wheny=46 | | (3+2j)(-2+4j)= | | 4(2x+9)=18-2(x-9) | | 2x^4-8x^2-10x=0 | | -5(2)+9k=2 | | 3(x+2)=-5-2(x+3) | | 1/6(7t-4)=t+4/12 | | 2x^4+8x^2+10x=0 | | 1/9x+1/5x+2/9=38/45 | | (x^3)-8=0 | | 27-9(-8x-5)=648x+432 | | 5y-2(y+5)=-(2y+15) | | 7(-4x+3)=-91 |