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)
x-(0.2*x) = 8/15 // - 8/15
x-(0.2*x)-(8/15) = 0
x-0.2*x-8/15 = 0
0.8*x-8/15 = 0 // + 8/15
0.8*x = 8/15 // : 0.8
x = 8/15/0.8
x = 0.66666666
x = 0.66666666
| 5(-7r-4)-3= | | 50=1/2(x-180) | | 3x-7=3+5 | | 4x/3*8x/2 | | 3*(5x+2)=156 | | 39=6(u+5)-3u | | 16x=-49 | | 6x-12=16-x | | -7(2y-3)+4y=-39 | | (-9-7i)-(-5+4i)+(4+i)=0 | | 3*(5x+2)= | | 192+2h=1020 | | -3+9x+73+29=180 | | X^4-4X^3-20X^2+12=0 | | 2.75x^2-36x+11=0 | | 5-3b=n | | -6(4x+5)=42 | | 1014=6(x+18) | | 56=.5714285714x | | 2/3x-5/7=7/12 | | 3g=9-4f | | -9(2-5m)= | | 3w/8=15 | | -x-7=-9x+9 | | 6x+(4x+2)=0 | | 5-4(-9-3m)= | | 37=2x+15 | | 6=1.75x+2 | | 7m+2n-4m+10n= | | -36-a/93 | | 3w-11=13 | | 34-2z=z+4 |