What is the simplified form of 2x + 3 + x - 4?

• A. 3x - 1
• B. x - 1
• C. 2x - 1
• D. 4x + 1

Answer: (A)

To simplify the expression 2x + 3 + x - 4, we start by combining like terms. Like terms are terms that contain the same variable raised to the same power.

First, identify the like terms in the expression. The terms containing the variable x are 2x and x. We can combine these:

2x + x = 3x

Next, move on to the constant terms in the expression, which are 3 and -4. Combining these gives:

3 - 4 = -1

Now, we can put it all together. After simplifying both the variable and the constant terms, we end up with:

3x - 1

This is why the answer is accurate, as it clearly reflects the correctly simplified form of the original expression, combining the like terms effectively into their simplest representation.