If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
21/4 = 12-((3/4)*m) // - 12-((3/4)*m)
(3/4)*m+21/4-12 = 0
3/4*m-27/4 = 0 // + 27/4
3/4*m = 27/4 // : 3/4
m = 27/4/3/4
m = 9
m = 9
| (y-7/y)*(5y/y-7) | | -10+x+44-5=7x-5 | | 2x+3y=174 | | 12=x^2/1.6-x | | 3x+1y=163 | | 2(x+1)x=5 | | -14+2=x+8 | | 15x^5+30x^4+20x^4+40x^3+20x^3+40x^2= | | 3.25g-2d=3.95 | | 3/5t=6 | | 32-19=x-9 | | x+x/5+4+(x/5+4)/7=66 | | -4a/3=10 | | 33-23=x-8 | | 74z+8=43+2 | | X=4/3y+4/3 | | x^2+1.3x+0.4= | | 1.75*.35t=2.80 | | 5/6t=10 | | 33-23=-8 | | 3x+1y=63 | | 4z=0.5z | | 5(x-2)=2x+4(x-1) | | 2(4z+6)=4z+24 | | 13-3x+6y+15x+5y= | | 5/6t-6=4 | | s^2=8-2 | | -t-5=2t+1 | | (x-8)/10-(x+11)/12=(11x-8)/15 | | 3x-11=x-14 | | 9a^3=16a | | 4-2/5 |