Final answer:
The simplified expression of '35x + 19 - 320x - 7' is '-285x + 12' after combining like terms. This involves adding and subtracting coefficients of x and the constant numbers separately.
Step-by-step explanation:
The original expression provided by the student is 35x + 19 - 320x - 7. The goal is to simplify this expression by combining like terms. To do this, we can group the terms with x and the constant terms separately.
- Combine 35x and -320x: which gives us -285x.
- Combine 19 and -7: which results in 12.
When you combine both parts, the simplified expression is -285x + 12.
To address the unrelated information regarding exponents, such as the rule xPx9 = x(p+q), it's important to recognize that it's not directly related to the initial question. The initial question involves simplification of linear terms and does not include exponents.