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)
2/3 = x/140 // - x/140
2/3-(x/140) = 0
2/3-1/140*x = 0 // - 2/3
-1/140*x = -2/3 // : -1/140
x = -2/3/(-1/140)
x = 280/3
x = 280/3
| 7r=-38 | | 2.6*0.9=x | | 10x^2+16x+6=0 | | 8y+6=50 | | 3x+4-12x-3=-9x+1 | | 4(5+2X)-5=3(3x+5)-x | | 5s-2s=3s+2s+18 | | x=x*64 | | 4x+3-3x=-5(x-3) | | m/23=-1/2 | | x=x/64 | | 39.7+30.1=165.288 | | x/5+9=-2 | | -12x^4+48x^3+144x+1296=x | | 12x+17=27-3x | | 10^(y/5)=t | | 20x+0=10x+90 | | 2x/3+x/3=-3/4+x/2 | | n/4-14=9 | | 6y+3(y-5)=4(y+1)-2 | | 4x+7=x+27 | | 0.9x+3=0.4x+1.5 | | 8x-(5y+2)=16 | | 5t-2=54 | | x/10+2 | | 17x-32=63 | | -9.6=6.4n | | 6(2-z)/5=-z | | y=2x^2+6x+3 | | 3t-6= | | 5t-2=28 | | 3t-6t=-4 |