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)-3 = -15 // + 15
x/(-4)-3+15 = 0
12-1/4*x = 0 // - 12
-1/4*x = -12 // : -1/4
x = -12/(-1/4)
x = 48
x = 48
| 5(3x+4)=4x+9 | | 24x^2-14x-30=0 | | 3(x-2)=-40 | | sqrt(5x)=-2 | | 3X^-7/9X^14 | | -1=-1/4s | | 3(3x+2)=87 | | 9x-3x+18=-54 | | 2-1/9d=17 | | Y-600=80(x-4) | | 3(x+2)+2x=32 | | 11n-7=11n+7n | | 12-1/=17 | | 6/11=z/8 | | 15+2x-5x=45 | | 10/7=t/9 | | x+4-3x=26 | | 5(6.4+2)-7=-32 | | 30=5+(x+1) | | (2x-1)/(x-5)=5 | | (-4.9t^2)+(3t)+550=0 | | F(x)=sec(tan(2x)) | | F(x)=2x^5-x^4+x^3-x^2+x+5 | | 5n+3-10=3n+8-7n | | (-b/2)^2 | | 2i/-5-i | | 12x+3-2x=53 | | -7-5=9-6p | | 24x^3-150x=0 | | 8x+8=17+x | | (x-1)(x-7)/(x-1)(x-6)(x-3)=0 | | -7=5+4v |