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)
35/15 = x/12 // - x/12
35/15-(x/12) = 0
7/3-1/12*x = 0 // - 7/3
-1/12*x = -7/3 // : -1/12
x = -7/3/(-1/12)
x = 28
x = 28
| 10(x+6)=6x+88 | | 135+(60+40)(x-3)=800 | | 3b+1=26 | | 6/15=2/x | | f(x)=0.03x+0.88 | | 7=piex | | 6a+2=-23 | | 2x-(5/7x-3/4x)=57 | | 6x^3=92 | | 39.63+0.05x=c | | 5x^2+4=136 | | 3x+18=9x+10-4x | | 4y+50=60 | | 10(x-2)=6x-8 | | tan^2x-9tanx=0 | | 2-8v=25 | | abs(6x-5)=abs(-x+3) | | (x-2)^3/4 | | 4-3n=-7n+8 | | (10+.66)a=50 | | 3x^2-3x-6=120 | | 5(x-3)=5(4x+3) | | 45x+15x-50+10x-25+75x+125= | | 2(6n)+13= | | 3x-0y=3 | | 3/2n-15/4n=-1/2 | | 25(x+z)=38 | | 120j+120j-180+120-160j-140= | | 19=15+4(x-18) | | 3/5x-2/3=1/2 | | -21a+38a-6=-10.2 | | 50-44-38-32-26= |