Convert number to string

Question

How can I convert the number -0.000007 to a string -0.000007?

I tried:

x = -0.000007;
ToString[x]

That gives an exponential output.

ToString[AccountingForm[N[x, 10], {10, 6}]]

gives the value without sign and parentheses around

(0.000007)

Answer 1

x = -0.000007;

str = ToString @ AccountingForm[x, {12, 10}, NumberSigns -> {"-", ""}];

str // FullForm

"-0.000007"

ToExpression[str] + 1

0.999993