Final answer:
The expression 9x + 16 + 4x - 19 simplifies to 13x - 3.
Step-by-step explanation:
To solve the expression 9x + 16 + 4x - 19, we group like terms together. The like terms involve 9x and 4x. Adding these terms together gives us 13x. Similarly, adding 16 and -19 gives us -3. Therefore, the simplified expression is 13x - 3.
Learn more about Solving algebraic expressions