If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
8/10 = n/5 // - n/5
8/10-(n/5) = 0
4/5-1/5*n = 0 // - 4/5
-1/5*n = -4/5 // : -1/5
n = -4/5/(-1/5)
n = 4
n = 4
| 7x-5=4x+19 | | x^2-7=3x | | 3e-32+e+16=180 | | -3.5-1.25(r)=-13.50 | | 3e+32+e+16=180 | | w=2xy+2xz | | (5y-7)(8+y)=0 | | 3x-154=10x-7 | | t^2-5t=36 | | 6(x+4)=54 | | h(0.23)+2.34=6.25 | | (1/2)*(3/6) | | 4(6x+5)-3(x-5)= | | 1/2/5/7 | | x^3+9=3x^2-3x | | 2s+7s-18=90 | | 7.3+h=36 | | 10.8-0.2(w)=9 | | -36-9x=8x+17 | | 2t^2+11t-63=0 | | 1/2-37 | | 3/4+7/8 | | (2/3)/(3/5) | | 0.4d=8 | | 8(x-3)=-4(x+1)+34 | | -8-5x=10+8x | | 16a-4(3a-1)=20 | | 4(2x-1)=3x+26 | | 73+-5x=31x+21 | | 6x+6=96-3 | | 88-42=5(h-6) | | (1/8)*(3/4) |