If it's not what You are looking for type in the equation solver your own equation and let us solve it.
k in (-oo:+oo)
(2/5)*k = -2 // + 2
(2/5)*k+2 = 0
2/5*k+2 = 0 // - 2
2/5*k = -2 // : 2/5
k = -2/2/5
k = -5
k = -5
| 15x-457=983 | | -18n-11=115 | | 3x-1=56 | | 7n+7-3n=5n-5 | | x-42=6(2x+3)-5 | | 9x+33=51 | | 1/15r=45 | | 5(1)-5y=-2 | | 19x-(9x-6)=46 | | y=-5(-2)-8 | | 16n-18=4(n+2) | | -5(x+6)+34=12-6x | | 1/3d=-1/6 | | 6*6+(5-12)=x+3*3*3 | | 50=35-3(x-2) | | 7(x+6)-7=116-2x | | -1/2r=22 | | 23u+2=12u+72 | | -5x-8=6x+14 | | 4(n-36)=36 | | 12x-8=3x+26 | | -1.5f=16.5 | | X^3-182=0 | | 7+4(8x-6)=9 | | --3-4y=-13 | | -12.6g=12.6 | | -3-4y=-13 | | 3x^4-8x^3-37x^2+2x+40=0 | | -12.6=12.6 | | 2(9-12)=n-8 | | 4x+8-2x=-2 | | -1/15v=-15 |