If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
(4*r)/4+1 = 0
r+1 = 0 // - 1
r = -1
r = -1
| 8x-3=8x-4 | | (x-3)/4-1=(x/9)/5 | | 5p+2r=29 | | 2x^3+33x^2+108x=0 | | x-3/4-1=x-9/5 | | -16x+2=3x | | [X-3]+4=9 | | 3x-8=16.5+6.8x | | x=97-16x^2 | | 3/7x+22=55 | | 4x^2-1=5x^2-50 | | 1y+2x-3=0 | | 6-9x-4=-17+6x-11 | | 5x^2+7=2x^2+16 | | 6+2x^2=5 | | 17-7x^2=3 | | -4x-15=6x+25 | | 6(2x-3)=2-18+10x | | (79+85+82+89+x)/5 | | xy+3x= | | -20-4.6x=-2.3x+0.95 | | 3x/10-2=x/5+2 | | -4x-15=6x | | (4x-8)+(x-11)+(x+13)=180 | | f(x)=-16x^2+200x+4 | | 12x+15y=216(13) | | x^2*y^2-6xy= | | 4y-3x+5+33-2x+3y=2x+7 | | 17=3(x-3)-(x-8) | | 6u+14=-12--8 | | 6u+14=-12-(-8) | | 39-2x=4x |