Simplified the expression 10n+-4+ 7n+-1+-10n

To simplify the expression 10n+-4+ 7n+-1+-10n, we can combine like terms.

First, let's combine the terms with "n":
(10n + 7n - 10n) gives us 7n.

Next, let's combine the constant terms:
(-4 + -1) gives us -5.

Combining the simplified terms, the expression 10n+-4+ 7n+-1+-10n simplifies to:
7n - 5.