2а+3b+5a

The expression 2a + 3b + 5a can be simplified by combining like terms.

To simplify, you can add the coefficients of like terms. In this case, the like terms are the terms with the same variable, 'a'.

The 2a and 5a terms can be added together: 2a + 5a = 7a

So, the simplified expression is: 7a + 3b