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)
5/9 = x/81 // - x/81
5/9-(x/81) = 0
5/9-1/81*x = 0 // - 5/9
-1/81*x = -5/9 // : -1/81
x = -5/9/(-1/81)
x = 45
x = 45
| -19x+-38=-19x+-38 | | 10x+10=300 | | 9=-5(-p-2)+2(-2-3) | | 101=3x+20 | | 2(2x-2)=3(x+5) | | -19x+91=-19x+91 | | 9y-3=7(y-1) | | 8a-8=-4a+16 | | -5x-4(3-4x)=3(x-3)-27 | | 8.48(0.12-0.70x+x^2)=x | | 4x+100=200 | | 25x+25y-2z=5+3z | | 171=9x+9y | | 46=2x+14 | | 2+4x=62 | | -4x+54=5x+9 | | 14+5x=-5x+2(7+8x) | | 216=14x+9y | | 12(9x-3)=8x-8 | | 5+2x+x=41 | | 4x+2x+3=2 | | 64x-803=541 | | 5+20=28-n | | 3+5x-x=47 | | 5+2=28-n | | 2+4x=47-x | | 24-3x=6x+11 | | 15a-37=38 | | 6x-3(6x+9)=33 | | 5÷n/4=10 | | 2+6q=11-3g | | 7.82=2(3.14)r |