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)
y = (9/4)*x-4 // - (9/4)*x-4
y-((9/4)*x)+4 = 0
(-9/4)*x+y+4 = 0
y-9/4*x+4 = 0 // - y+4
-9/4*x = -(y+4) // : -9/4
x = (-(y+4))/(-9/4)
x = 4/9*(y+4)
x = 4/9*(y+4)
| 6x^2+14x+4= | | (2x-3)=6x+2 | | x-9.1=8.4 | | 6n^2=-12n-1 | | ax+bx+ay+by= | | 9-(3x+12)=21-7x | | 8n-3n/5 | | (3x-2)/3+4=(x/4) | | 2x-3/5=x+2/6 | | x+3/8+9/7+x-2/2 | | 3x-2/3+4=x/4 | | 12x=14(x-1) | | 12y/13x11/24 | | 4+5=19 | | 4=-0.8x | | 4=0.8x | | 8n/5-3n/5 | | 3x-8/14=x+1/2 | | 6x/8+4x/2-5=3x/4 | | 13-8/14=x+1/2 | | 8x^2+86x+146=0 | | 2x(2x+7)=x(x+23) | | 3x(7x+10)=21z^2+30x-5 | | x/3+5(x-1)/4=3x/4-1 | | -6/-5k=12 | | 5x+20(x-3)=240 | | -6/-5=12 | | -(3-8n)-9=10+8(n-10) | | -6/5k=k | | (x+6/14)=1/7+(x-4/2) | | 8x^2+86x+150=0 | | (-5x+3)(x+11)=0 |