If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3^-1+3^-2+3^-3 = 0
1/(2*x) > 0
x^2+4*x+3 > 0
x^ln(x)
y = a/x
| 9x+5=-6x+50 | | 2f-6=20 | | =201.3586956521739 | | 5+(3x-7)=12x+6 | | G=xc+y | | -18+4x-2x=32 | | x^4+4i=0 | | -8v+6(v+2)=-2 | | 1092317q-102774=3 | | 15x(3p-5q*19d)=13 | | -2(y-9)=6y-46 | | 6x-4(x-2)=8 | | 4(2s+5)=44 | | 7x-45=9(x-3) | | 5(v-6)-7v=-12 | | -5(4y-5)+2(3y+5)=0 | | -28=-7v+2(v-4) | | X^2+4x-7=5x-2 | | 20=-7x+3(x+8) | | gay-n=x | | 4.4x+9.4=1.05x | | S-27=7(s-5) | | 5(x+8)-8x=22 | | X=30-.25y | | 11m+4=m+94 | | n+64=3n-100 | | 3x^2+2=-44 | | 26y+24=-18-9y | | 3(x-4)+6=12 | | 6p-4=8p-78 | | z/y-6=2 | | 10j+24=8j+30 |