If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
(3/4)*a+4 = (1/4)*(3*a+16) // - (1/4)*(3*a+16)
(3/4)*a-((1/4)*(3*a+16))+4 = 0
(-1/4)*(3*a+16)+(3/4)*a+4 = 0
(3*a)/4-1/4*(3*a+16)+4 = 0
(-1/4*4*(3*a+16))/4+(3*a)/4+(4^2)/4 = 0
3*a-1/4*4*(3*a+16)+16 = 0
16-16 = 0
0 = 0
0/4 = 0
0/4 = 0 // * 4
0 = 0
a belongs to the empty set
| X-5/5=-1/3 | | -8=7/m+2 | | c^2-4c-4=0 | | 28b^2+15b-25=0 | | 2y-7=-3+4y | | -4(3-2p)=-16+8p | | -8(5x-6)=-32 | | 0.05x+0.09(2x+49000)=30860 | | 2x^2+7x-30= | | (x+9)(3x-2)=0 | | 4-12*x=3 | | 5x+7y=-49 | | fx-3=13-3x | | 1/4(2x-3)=4 | | 6(5-4x)=6 | | (5x+7)(7x-4)=0 | | -11=3(1+6n)-4(5n+2) | | -4xy^2=2xy | | 5x-1=2x-11 | | 6y-3=-8+y | | 2(x-4)+6=8+4x+2 | | 4x^2+11x-20= | | 12x^2+17x+5= | | (2x+9)(5x-3)=0 | | (9x+8)(7x^2+4x+7)= | | 8000=h+100+h | | 0.07x+0.38=0.16-0.05x | | 10-(x+9)=6x-6 | | 8x+5x+3y=26 | | -a-3+7=39 | | 0.08x+0.04(x-1100)=172 | | 16-(n-8)=3n+14-2n |