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/2 = 4/7 // - 4/7
-x/2-(4/7) = 0
-x/2-4/7 = 0
-1/2*x-4/7 = 0 // + 4/7
-1/2*x = 4/7 // : -1/2
x = 4/7/(-1/2)
x = -8/7
x = -8/7
| .15x+.07x(70000-x)=5000 | | 015x+.07(70000-x)=5000 | | 10n+2= | | 93-5n= | | 1.8x-x=10 | | 8y-16=-2(y-7) | | 2x+2x+3x+10+10+6=180 | | r^2+3r+5=0 | | 0.3x^2-33x+15.000=22.800 | | 7ln(x+1)= | | 1/x+1/x+2=1/5 | | 7(6c-1)-16=40c+7 | | 9n+29= | | -4(3w+2)-w=31 | | -4(3w+3)-w=31 | | 2x^2+7x-9=x^2-x | | 2x-x=10 | | 2x^3=7x^2 | | -44+x=25 | | 4(10x)+3=15 | | 3(r-9)=8r-27 | | -5x/9-6-9 | | (x+2y)dx+y*dy=0 | | (x+12)(x-5)=x^2+31 | | 3r+5+r^2=0 | | 2x^2+300=0 | | 14=8+j | | -5x=20-20 | | 10b-3b-18=b+26-5b | | 3-x=7x+6 | | 10=1.8x-x | | 68-2n=0 |