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)
100 = (-4/3)*x // - (-4/3)*x
100-((-4/3)*x) = 0
(4/3)*x+100 = 0
4/3*x+100 = 0 // - 100
4/3*x = -100 // : 4/3
x = -100/4/3
x = -75
x = -75
| 3.5x+4y=305 | | C-45=100 | | -(X-7)=9 | | 5v-3w=29 | | x-2=1.52 | | y(y+1)-3y=y*y+y | | f^2+5= | | x^2+28x+2=0 | | 4x^2-28=-6x | | 5x-x*x=6-x*x | | 14/2i | | 5x+9=17x-4+81 | | y(2-x)+3(x+5)=-7x | | 9u^2-u^4=0 | | 4x-(2x+1)=2 | | 4tan^2x-2=10 | | X-5.9=9.1 | | acx+bc+adx+bd=0 | | Y+1.7=9.11 | | Cos(x+90)=-sin | | us+us=x | | -2(r-1/2)=2 | | 3cosx+6=0 | | 2/7x+6=10 | | x^3-3x^3-13x=-15 | | 0.05t^2-3t-90=0 | | 4x^3+9x^2+5x=0 | | 2x(x-2)=3(x+10) | | 20y-40=7y-10 | | 4(x-1)=-x | | -.05t^2-3t-90=0 | | 6/9-7/10 |