Which expression is equivalent to the expression below?

Question

9, left bracket, 6, n, plus, 7, right bracket, minus, 7, n
9(6n+7)−7n
Answer
Multiple Choice Answers
61, n, plus, 761n+7
22, n, plus, 1622n+16
9, left bracket, 6, n, plus, 7, minus, 7, n, right bracket9(6n+7−7n)
47, n, plus, 6347n+63

Answer 1

9(6n+7)−7n is equivalent to 9(6n+7-7n)