Which expression, when simplified, is equal to 7p? a) 9p – 2pq – 7p – 5p + 2pq b) 9p – 2pq – 7p + 5p – 2pq c) 9p + 2pq – 7p + 5p – 2pq d) 9p + 2pq + 7p + 5p – 2pq e) 9p + 2pq – 7p + 5p + 2pq

C

Step-by-step explanation:

2pq - 2pq is zero. B and E have no zero pq coefficient.

p(9-7+5) = 7p

2222222222222222222

step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~