Which of the following equations, in its simplest form, will be equivalent to 3x + 2 + (–5)?
Answer
A
2 + 3x + 5
B
x – 1 + x – 2 + x
C
–3 – 3x – 1 + x
D
3 – 3x
Explanation
Combine the constant terms in the original expression: 2 + (−5) = −3, so it simplifies to 3x − 3. Choice B also simplifies to x + x + x − 1 − 2 = 3x − 3, so it is equivalent.
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