96-I'm confused with this sentences

[matilda]

Dear all

Hello

There is a sentence which I'm not sure about its grammar. Plz tell me if it is correct and if not, plz tell me the correct form.

Although I have more grey hairs, but that is nothing that couldn't be solve.

I have two questions about this sentence.
1- gray hairs
2-nothing that couldn't be solved
The second question must have a negative meaning; I mean it means that there is nothing wrong with my gray hair. But I'm surprised because the two negative morphemes the writer used.

Thanks in advance

Matilda

[MrPedantic]

Hello Matilda

The sentence is incorrect as it stands.

Here's an amended version, which may bring out the intended meaning a little:

1. Although I have more grey hairs now, that's nothing that a bottle of hair-colouring couldn't solve.

To have grey hairs = to be getting old. "That's nothing that X couldn't solve" means "That is a thing that X could solve". (The double negative is used for emphasis and stylistic effect: the two negatives cancel each other out.)

The sentence therefore means:

1a. I have more grey hair than I had when I was younger. However, that isn't a problem: I can easily dye it.

MrP