If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
0.15*x = 0
0.15*x = 0
0.15*x = 0
0.15*x = 0 // : 0.15
x = 0
x in (-oo:0) U (0:+oo)
0.1 = (0.15*x)/(0.15*x) // - (0.15*x)/(0.15*x)
0.1-((0.15*x)/(0.15*x)) = 0
0.1-1 = 0
-0.9 = 0
x belongs to the empty set
x belongs to the empty set
| 2p+3*1=12p+2*1 | | (.4x^2)-1.1x=2 | | 4(1+6a)=-140 | | 3(2x-5)-4(X-1)=5X+4 | | 4(3m+5)+7(2m-2)= | | 7sinx-4=0 | | 18(-y-2)-4(-9+3y)=-14 | | -8x+2(-3x-6)=20-6x | | y=3x^2+4x+1 | | (13b-7)-4(3b+4)=-4 | | 150*.5= | | 600=100t-5t^2 | | (6n^5+15n^4+7)-(9n^4+3n^5+3)= | | (3j2/3x7m1/4)(3j1/6x7m3/2) | | 5x+2(3x-2)=1-6x | | p-(-5)+3p=15 | | (3j2/3x7m1.4)(3j1/6x7m3/2) | | 2r+8-t=3 | | y/(-8)=11 | | 12d+3-9d=12-6d | | (8z-14)(7z-8)=0 | | x-0.88=-0.56 | | -8-b=9 | | 15(x-2)(x+3)(x-4)=0 | | (4c-10)(c-4)=0 | | 16/11-18/11 | | 960=(3n-2)*(2n) | | 2(3x+4)=-34 | | x+(x+2)+(x+4)=-18 | | (12y^2)-28y+15=0 | | 17+w+6=23 | | 4A^2+3A+36=8A^2+3A |