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-7)/6)*(-2*x-6) = 0
((x-7)*(-2*x-6))/6 = 0
( -2*x-6 )
-2*x-6 = 0 // + 6
-2*x = 6 // : -2
x = 6/(-2)
x = -3
( x-7 )
x-7 = 0 // + 7
x = 7
x in { -3, 7 }
| x-6+3x=-x+14 | | -6+2=7x-1 | | -60-4x=-9x+85 | | 2x^5+4x^3=0 | | -54-3x=2x+51 | | -89-7x=27-11x | | -6/5=-2y | | 4/5y=7 | | -2x+3=-(x-7) | | 12=2(w-6)-5w | | 14-4x=-7x+2 | | -7x-142=130+9x | | -3u/5=18 | | 4x+8=15x+12 | | x^4-6x^3+25x^2-96x+144=0 | | -74+3x=115-4x | | -12=-2/9u | | 27/12 | | x-13=7x | | 4x+9-2x=2x-5+x | | 4x-114=30+10x | | -5x+25=5(x-5) | | -24-5x=-11x+48 | | -4+3n=-16 | | B-3=7-b | | 2x+1=5x+6 | | 8x+7-2x=6x-2+x | | -7=30+3 | | 21h^3+35h^2-28h= | | -6(2t+6)=72 | | 12x-99=2x+61 | | 2x+5x=-6+20 |