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)
0.5*x-((2/3)*x) = 7/12 // - 7/12
0.5*x-((2/3)*x)-(7/12) = 0
0.5*x+(-2/3)*x-7/12 = 0
-0.16666667*x-7/12 = 0 // + 7/12
-0.16666667*x = 7/12 // : -0.16666667
x = 7/12/(-0.16666667)
x = -3.49999991
x = -3.49999991
| x^2=-18x-80 | | 3/x-3=x/x-3+3 | | 9d+d=180 | | x-.6-1=x-1.28 | | 2/3x+16=0 | | 5n^2-24n-5= | | (36x^-2/3)^-1/2 | | 4x-12-1=5x-25 | | 0.5x+.33x+5=x | | 216=36p | | -18x^2-60x-50= | | 1800-100x=504 | | 3x^2=-3x+1 | | 18000-100x=504 | | (x-5)+2=x+3 | | 12x^2+18x+6= | | (25+5x)-4= | | 4k^2+k-5= | | 3n^3-33n^2+9n=0 | | 0=4-sec^2x | | 2t^2+9t+7= | | t/9=4.2/3 | | 5d+4d-d=180 | | 2/(x+3)+5/(3-x)=6/((x+3)(x-3)) | | 2/(x+3)+5/(3-x)=6/(x+3)(x-3) | | 5z-7=14z+12 | | 2y^2-9y-11= | | e^12x+8=20 | | x^4=228 | | n^4=228 | | 7x/x=7 | | n^4+12=240 |