If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a-(4/7) = 1/(30^1) // - 1/(30^1)
a-(4/7)-(1/(30^1)) = 0
a-4/7-1/30 = 0
a-127/210 = 0 // + 127/210
a = 127/210
a = 127/210
| (5w+2)(w+3)=0 | | -24-8c=6(9c-5) | | 6(5a+8)=-19+2a | | 6(12y+1)=42 | | -5s-4s=24 | | 5x=14+x | | 35=-3f+6f | | -2(x-3)=3(x-3) | | 2n+4-6n=18 | | x-6=x^2-5x-3 | | 35=8+9(h+6) | | 457x-17= | | 3(x+1)=4-2 | | -6+4(1+3v)=-16 | | -1+10x=-191 | | 5b+b+2a= | | 2y-x=43 | | -81=-8m+7 | | -6b+3-2=29 | | y=8E-05x+0.077 | | -8a+3b-4c=4a+3b+4c | | -4b-7=57 | | Cos(23)=8/x | | 0.02s^2=18 | | 5x+3=-32-10x | | -10=5.3+s | | -36=-27 | | 3.9v=39 | | 4(3x+5y)+2z+3(x-z)= | | 0.009s^2=36 | | a+6.3=2.2 | | 4x+3=5+4x |