Look at this expression.

Question

-3a+4+5a-7+a
Which of the following is equivalent to the expression?

A. 3a+3

B. 3a-3

C. 9a+3

D. 9a-

Answer 1

To simplify the expression \(-3a + 4 + 5a - 7 + a\), we can combine like terms.

1. Combine the \(a\) terms: \(-3a + 5a + a = (5a - 3a + 1a) = 3a\)

2. Combine the constant terms: \(4 - 7 = -3\)

Now, putting it all together, we have:

\[ 3a - 3 \]

Therefore, the expression \(-3a + 4 + 5a - 7 + a\) is equivalent to the option:

B. 3a - 3