2x-4+5+7

To simplify the expression 2x - 4 + 5 + 7, you can combine the constants and the coefficient of x.

First, combine the constants by adding 5 and 7:

2x - 4 + 5 + 7 = 2x - 4 + 12

Now, combine like terms to simplify further:

2x - 4 + 12 = 2x + 8

So, the simplified form of the expression 2x - 4 + 5 + 7 is 2x + 8.