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)
b-((3*x)/a) = 3*x-a-((2*b)/b) // - 3*x-a-((2*b)/b)
a-((3*x)/a)+b-(3*x)+(2*b)/b = 0
a-3*a^-1*x+b-3*x+(2*b)/b = 0
a+b-3*x+2 = 0 // - a+b+2
-3*x = -(a+b+2) // : -3
x = (-(a+b+2))/(-3)
x = (a+b+2)/3
x = (a+b+2)/3
| x^2+4*x+4=25 | | y^4=-81 | | 7+3x-6x=2x-8 | | -12r+6=-12-12(r+6) | | 2x^2-18=19 | | y=-91/2 | | -16=4/5x | | -4(2x+6)+2=-22-5x | | 1+2+2+2+2+2+2+2= | | 4(3x+1)-3(7x-3)=x | | 6x+2+18x=98 | | 5x-3+2x=17 | | 37x-3=10x | | 4x+4y=85 | | 4/9a=1/9a+5/6 | | 4x+2y+2z=85 | | 4(x+3)/3=5(x-8)/6 | | 3a-10=3(a+1)+13a+1 | | 60x+70=5 | | 3x^2+-2x=8 | | y-120=-91/2(x-0) | | 3(2x-6)=3x-3 | | -2x^2+x+1=mx+1 | | 3x+4=9x-7 | | -6y=5 | | 3.14*x=28 | | 40x+60x=20 | | w(4-w^2+1)=8-w^3 | | (.25x+3)=.75x-7 | | 3m+17=77 | | -14=2+3m+5m | | -5(-9x+1)-6=-11(1+4x) |