4m+5+2m-1 This expression can be simplified as 6m + 6.

The given expression is 4m + 5 + 2m - 1. To simplify this expression, we can combine like terms by adding the coefficients of m. The coefficients of m are 4 and 2, which add up to 6. Therefore, the simplified expression is 6m. Similarly, we can combine the constants 5 and -1, which add up to 4. Therefore, the simplified expression is 6m + 4. Therefore, the statement "This expression can be simplified as 6m + 6" is false.