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)
8 = (-2/5)*x // - (-2/5)*x
8-((-2/5)*x) = 0
(2/5)*x+8 = 0
2/5*x+8 = 0 // - 8
2/5*x = -8 // : 2/5
x = -8/2/5
x = -20
x = -20
| 4l+60+l+20=180 | | 3b^2=2b+2 | | 7(x-1)+3=10 | | 6m+9m=2 | | (16/9)y-=(11/9)y+22 | | 18-(2m+5)=2+3m-19 | | 7(x+2)=4x | | 3(2q-6)-(-3a-1)=4a-2 | | 10+-25=25+-10 | | 3b^2=2b | | 0.12a-6=1 | | 46=5x+x+16 | | .5(4x+24)=22x-2 | | 6m-9m=2 | | -5/6x=7/8 | | 68/17 | | 7s-18+2s=90 | | 4y+3=10 | | 12n+7-4n-3=-9(n-4)+2(11n-6) | | 4y+22=6y | | 0.02+0.1=1 | | 4s+(-1)=8+(-2s) | | 12b^2-13bc-4c^2=0 | | w^2-3w+14=0 | | 5x+17=10x | | x/18=7/6 | | 4/x=2/4 | | 6f+3+3f+6=180 | | 2(1+2a)=2(a-8) | | 2x-3=106 | | (a-3)(a+3)= | | -204/-17 |