Adding and Subtracting Expressions Answers

Which expression is equivalent to (–3y – x) – (5y – 8x)?

After simplifying, which expressions are equivalent? Select three options.

One week, Isabelle bought 2 bags of apples and 3 bags of oranges. The next week, she bought 1 bag of apples and 2 bags of oranges. If a represents the cost of each bag of apples and r represents the cost of each bag of oranges, which expression could Isabelle use to calculate the difference between the amounts she spent each week?

What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?

Katrina is asked to simplify the expression . She writes: Which property allows her to do this?

Felipe is planning a party. He has $50.00 to spend on sandwiches that cost $2.50 per person, $25.00 to spend on drinks that cost $1.50 per person, and $25.00 to spend on gift bags that cost $3.00 per person. Which expression could be used to show the amount of money he will have left over if x people attend the party?

Carmen simplifies the expression . The coefficient of the variable y in her simplified answer is

Ella simplifies and says the result is b 5r. What error did Ella make?

What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?

Clara simplifies and says the result is . What error did Clara make?