Question

which expression is equivalent to a + a + a + a + 1 + 1 + 1? 4a + 3, a + 3, 4a + 1, a + 1

Explanation:

Step1: Combine like terms for \(a\)

There are 4 terms of \(a\), so \(a + a + a + a = 4a\)

Step2: Combine like terms for 1

There are 3 terms of 1, so \(1 + 1 + 1 = 3\)

Step3: Combine the results

Putting them together, we get \(4a + 3\)

Answer:

\(4a + 3\)