If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
3-((x/x)/2) = 6 // - 6
3-((x/x)/2)-6 = 0
3-1/2-6 = 0
-7/2 = 0
x belongs to the empty set
x belongs to the empty set
| -107=69-11x | | 25+4.50x=56.50 | | 15x^7/3x^-10 | | -74-12x=-242 | | x-7+x-6=12 | | 14x^4y^7z/44u^7v^9 | | 35+65+127+x=360 | | y=100+75x | | -3+-1(-6)=-3 | | 6x+8x-72=54-4x | | 4g+2=14 | | 2x-3+x+1=20 | | b+3=2b-3 | | -9x+31=-41 | | 3x+3=2x-48 | | 6.25=100h | | 3tanx+1=-2 | | -9+31=-41 | | 2x-13+x-6=22 | | -1+-2(-2)=-1 | | V/3-5=31 | | 4=-1=/2 | | 8x+28=92 | | 6x+1+11x-5=13x+12 | | 6.25=100 | | 0.05+0.7=0.3t-0.35 | | 5+5x=145-15x | | 28+2x=152 | | 2sin^2x-sinx-12=0 | | 21x+6-23x=3-5 | | -2a+8=-12 | | 10x=20-9x |