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)
(7/2)*(4*x-(6*w))-((x/3)*(9*x+6)) = 0
(7/2)*(4*x-6*w)-((x/3)*(9*x+6)) = 0
7/2*(4*x-6*w)-1*1/3*x*(9*x+6) = 0
7/2*(4*x-6*w)-1*1/3*x*(9*x+6) = 0
12*x-21*w-3*x^2 = 0
12*x-21*w-3*x^2 = 0
12*x-21*w-3*x^2 = 0
DELTA = 12^2-(-21*(-3)*4*w)
DELTA = 144-252*w
144-252*w = 0
144-252*w = 0 // - 144
-252*w = -144 // : -252
w = -144/(-252)
w = 4/7
DELTA = 0 <=> t_3 = 4/7
x = -12/(-3*2) i w = 4/7
x = 2 i w = 4/7
( x = ((144-252*w)^(1/2)-12)/(-3*2) or x = (-(144-252*w)^(1/2)-12)/(-3*2) ) i w > 4/7
( x = ((144-252*w)^(1/2)-12)/(-6) or x = ((144-252*w)^(1/2)+12)/6 ) i w > 4/7
w-4/7 > 0
w-4/7 > 0 // + 4/7
w > 4/7
x in { 2, ((144-252*w)^(1/2)-12)/(-6), ((144-252*w)^(1/2)+12)/6 }
| (2c^2+10c^2)= | | (-7x^3+5ax-3)+(7x^3+5-9ax)= | | 2/3x-31/2=21/4 | | 12x^2+2x=0 | | 1/4x-7/8=5/8 | | 2/3x+3/10=22/5 | | 1/4x+3/8=7/8 | | 4/5x+3/10=9 | | (x-3)/(2x-8) | | -2=14-4x | | 2p+3q=20 | | 610=1+x^2 | | 4x^2-19x+8=-8x+1 | | 5X-38=8 | | 3=41/5 | | 4/9+5=0 | | 2x^2-12x+3=0 | | x^2+11x-3=9x+5 | | 7t-4=-22+9t | | 8y+12x+15=37 | | 16=7+2x | | 1620=m+300 | | 1620=m-300 | | (11t+7)(4t-12)=0 | | 628-c=124 | | 16y=7+2x | | 720=1+x | | 48=-8x | | 5x+y=-15 | | 65=h+9 | | 65=h-9 | | 9(Y-9)=2(4Y+8)-97 |